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Cheow Lan Lake is man-made and surrounded by mountains and rainforest. It was made by the flooding of a large valley in 1982 for the hydro-electric power station.

The best time for a visit to this beautiful region is the dry season from December to late April. It’s Thailand’s wettest region with an annual rainfall of 3.500 mm. The reason is the limestone mountain range from north to south. It gets hit by the monsoons from the Andaman Sea and the Gulf of Thailand between late April and end of November. In the rainy season, it’s very rare to spot wildlife at the lake. Trails are slippery; it’s cold and wet on the one or two hours boat rides. The famous Nam Talu Cave is closed in the rainy season since it got flooded and people died.

Boat transfer on the Cheow Lan Lake in the Khao Sok National Park

The boat tours which are usually offered are for bigger groups, and it takes around an hour to get to one of the raft houses. These groups visit the easy accessible Coral Cave (Pakarang Cave) mostly as we did instead of the adventurous water flooded Nam Talu Cave. Ask before booking! Overall these trips are nice to get an idea of the immense size of the lake. The price p.p. in a group for one day visit is roughly 1.500 Baht / 40 € / $ 45 plus 300 Baht / 8 € / 9 $ National Park fee.

Weather

The dry season lasts from December to late April. Anyway, showers can also occur in the dry season and especially in the rainforest. The hottest months are March and April with temps up to 34°C and even more and high humidity. The rainy season starts roughly late April until the end of November. Most precipitation from May to July and from October to November.

Beautiful limestone karst formations on the Cheow Lan Lake

Crowds

The lake pier is always crowded but as soon as the longtail boat leaves the dock the crowds disappear. There are plenty of boats with tourists, but they have good timing not too many people visit one of the caves at the same time. Lunch is served on one of the many floating raft houses. It was very well organized that people can enjoy the marvelous scenery. 

Top Tip

To experience the amazing rainforest, wildlife, and birds it's recommended to book a private tour far to the north-west. To get there, it takes minimum two hours by boat. The only available accommodation is basic and running by the National Park. Early morning you may spot wildlife by boat along the lake. Of course, independent tours are expensive and need to be booked in advance.

A Great Place
TH Thailand
5

The Gustav Jakob Cave nickname Gustl was discovered in 1936 by Gustav Fetzer and Jakob Kazmaier. The cave is more than 400 meters long and the longest dry cave in the Swabian Alps.

The cave is closed from October until the end of March to protect the bats. It is advisable to visit the cave with dry weather conditions.

The cave is open from April to the end of September.

Cave
DE Germany
4.5

The Falkenstein Cave is located in the Swabian Alps, close to Bad Urach and south of Grabenstetten. From the car park, it is a short walk to the entrance.

Summer months and dry weather are the best conditions to get about 150 meters deep inside the cave. Of course, you can get deeper into the cave, but it's highly recommended to do with a guide. Check the weather forecast first, if severe weather is predicted don't enter the cave. At the end of July 2019 two men; a guide and his client got trapped in the cave. The water level became too high for leaving. A rescue team of 90 people got them out alive. So please, the Falkenstein Cave is not accessible during winter, when heavy rainfall is predicted and, after rains. None of these caves shouldn't be entered from October to mid-April. Usually, caves are home for protected bats in the colder season.

Cave
DE Germany
5

Valle Vinales once covered by a mountain limestone range, much has eroded and left the mogotes. Lots of the mogotes have caves and some of these are developed for visitors.

Best during the dry season roughly from November to April but this is also the peak season. Shoulder season May and June is worth a try and less crowded. Showers may occur but easier to find a nice casa without booking in advance. Hiking at the rainy season is possible but expect flooded trails. You might cross rivers with high level. Avoid the cyclon season from July to October and the school holiday from July to August.

Hiking
CU Cuba
4.625

Mammoth Cave, the world's longest known cave system with more than 400 miles that have already been explored and mapped but park rangers say scientists believe that may still only be a fraction of

Mammoth Cave National Park is a truly amazing year-round destination. Read our full season guide below and scroll down even further if you're interested in the best cave tours and the top tips before visiting almost at the end of this guide!

Special Tip: While you're in Kentucky, do not make the mistake and visit Mammoth Cave only. Take a look at Kentucky Off the Beaten Path® - A Guide to Unique Places. This guidebook from the 'Off the Beaten Path' series is terrific! It's your chance to visit unforgettable places!

Season Guide

In peak seasons (late spring until early fall) the cave draws big crowds, even more in the busy summer months. Each year, about 2 million visitors come to the park, with almost half a million of them taking a cave tour. Read our seasonal cave tour breakdown (shoulder season, high season, low season) and take a look at our tips to avoid the crowded tours in peak season. Please note that there are different tour schedules available for each season and that the number of participants allowed for each tour varies (up to 120). The visitation chart below contains official 2018 data. It gives you a nice insight about the busiest months at Mammoth Cave:


March - April - May | Spring (Crowded Tours): Early March is often still a good time crowd-wise. From mid-March until May the tours get more crowded, especially on weekends and public holidays (Memorial Day). Making online reservations is recommended. To ensure a slot for your desired tour, we suggest booking 1-2 weeks in advance, although for many tours it's sometimes possible to make reservations 1-3 days in advance only during the spring. Spring 2019 Schedule — March 10 - May 25

June - July - August | Summer (Very Crowded Tours): During peak summer months, the cave tours are heavily jammed. However, especially in June it's possible to get into a less crowded tour if you book an early morning spot on a weekday (Mon-Tue). Either way, making reservations is strongly recommended and often required to get into your desired tour. For the rare tours with very few participants, like the Wild Cave Tour, we highly recommend booking 3-4 weeks in advance, as it sells out real quick. Summer 2019 Schedule 

September - October | Fall (Crowded Tours): After Labor Day weekend (early September) the crowds at the park thin out slightly at least, and not every tour is sold out in advance. However, it's still not quiet at all and making online reservations is recommended even during shoulder season. 

November - February | Winter (Uncrowded Tours / Quiet Time): November and December are much quieter months.  January and February is the quietest time in the park. During both months there is a possibility, that you may have a mid-week tour nearly to yourself. 'Walking along Broadway without anyone else is a surreal and otherworldly experience.' You'll also enjoy lowest hotel rates in winter. Winter 2018/19 Schedule
 


Avoiding Crowds and Waiting Lines

Since the cave temperature is at a constant 54 °F (12 °C) year-round, you may just visit in the off-season in winter (see above) or at least during shoulder months, in late fall or early spring. In the summer, the whole place is jammed with tourists, particularly between 10 a.m. and 2. p.m.

However, if you'd like to visit in the summer months or maybe you can only visit then, we got you covered. Choose from one or more of our 3 tips to dodge the crowded tours:

  1. Book the Earliest Tour Spot: Book one night at a close hotel (see the tips below the weather details). Then you use the NPS online reservation (click on the current schedule) and book the earliest tour spot before the buses arrive: 8:30 a.m., 8:45 a.m., 9:15 a.m. (depending on the tour). Book a few weeks ahead of time to make sure the slot is available. Additionally try to go mid-week (Mon-Tue) and not on the weekends. Even those early tours can still be crowded (full) at times but the whole park is a lot quieter in the morning without the masses of tourists arriving via buses.
  2. Book a Tour with Fewer Participants: The number of people allowed on a cave tour varies by tour. The 'Domes and Dripstones Tour' for example allows 118 participants, which results in quite a crowd when fully booked. The Frozen Niagara Tour allows 'only' 39 people. Combine this one with an early morning time slot (see above)! However, the best tour to avoid the crowds is the Wild Cave Tour: An intense and very strenuous 6 hour drive for spelunking enthusiasts. Up to 14 participants only. 
  3. Use Another Parking Area: If you happen to arrive when everything is busy, do not use the parking lot in front of the Visitors Center. It's ridiculously crowded. Just park in the overflow parking at the Lodge (turn right before the Visitor Center). Walk through the Lodge and cross the bridge that takes you to the Center.
 
Weather (For Camping) | Cave Temperature

The cave has a constant temperature of 54 °F (12 °C) throughout the year, regardless of the outside weather. However, winter temperatures can be below freezing at entrances. In most areas of the cave, you'll be comfortable if you wear long pants and take a sweater or jacket with you.

Outside Weather: Even with the consistent year-round cave temperature, the outside weather shouldn't be overlooked. Not only by camping visitors (jump to the campsite section). In general, the climate around Mammoth Cave National Park is moderate with warm summers and pleasant spring and fall temperatures. Winters are mild and rarely harsh. Monthly climate details at Monthly Climate - Mammoth Cave. Excellent weather details including temperatures, rainfall, humidity and winds at Average Weather - Cave City Kentucky. For current conditions check out the weather webcam: Mammoth Cave NPS Webcam. Want to know the weather details for each season and month:

Spring Weather (March, April, May)

Spring is a pleasant time to visit the area, although the weather can vary a lot from day to day. In March the average highs already reach 61°F (16°C), in April 72°F (22°C). The nights are usually still chilly during March. In May it gets even warmer. May is also the month with the highest precipitation throughout the year. In general, rain is somewhat common during the spring with 8 to 9 days of precipitation per month. Also keep in mind that the weather is unpredictable, especially in spring. An afternoon can go from clear and sunny to rain or thunderstorms within two hours. Campgrounds open March 1 (see below). The campgrounds are not too busy in the spring (except for spring break and maybe weekends). Due to more precipitation, a rain fly is highly recommended for camping.

Summer Weather (June, July, August)

In general, the weather is quite stable compared to spring and other seasons. Summers outside Mammoth Cave are usually sunny, hot and humid. Daytime high temperatures often pass 90°F (32°C) in July and August. The downside is the high humidity between mid-June and mid-September. Especially from early July until mid-August / late August it gets really muggy, which might be uncomfortable for some visitors. On the other hand, the less humid and lower cave temperature comes in handy during those muggy summer weeks. If you're not bothered by the high humidity, the summer months are great for camping. Big plus: Thanks to the bats, you don't have to deal with mosquitoes at all.

Fall Weather (September, October, November)

Autumn weather can also be unpredictable, but not so much as in spring. In September it can still be humid, although not as muggy as in the summer months. The average highs reach 83°F (28°C). October is still pleasant with temps up to 72°F (22°C). In November it gets cooler but it's still mild with average highs of 60°F (15°C). Locals say that November weather can be nice most of the times. The campgrounds are significantly less crowded compared to summer. First signs of turning leaves are often in early October. And a good chance to catch the beautiful peak fall foliage colors is typically from mid to late October

Winter Weather (December, January, February)

Although it gets colder, the winter months are rarely harsh. However, ice storms in January and February are possible, which may cause difficult driving conditions. The snowy period usually starts early December and lasts until mid-March. Most snow falls in January and February. Although the cave temperature is constant year-round, it can be freezing in the cave entrance area in winter. In winter whole Mammoth Cave becomes a warm refuge and the quietness in the park area makes up for the lower outside temperature.

 

Cave
US United States
5

The Cave Stream Scenic Reserve is located about 50 km from Arthur's Pass.

The best months for this once in a lifetime adventure are during summer from December to April. In winter from June to August it can be extremely cold; the temperature of the water will be near freezing, and the water level is too high for caving. A wetsuit is already recommended in April. Hypothermia is an underestimated risk. The Broken River Cave is frequented during summer; be there either early or late in the day otherwise, you are queuing wet inside the cave instead of enjoying. 

Inside the Broken River Cave, Cave Stream New Zealand
The powerful Broken River - The Cave Stream

Not advisable with a high water level. The deepest section is situated at the beginning of the cave adventure. If the water level is higher than your waist level, don't continue. It gets pretty cold, strenuous, and the water pressure is immense. Also, do not enter if it is raining; it can cause flooding! If the water of the river is not clear you also should not enter the cave. The most demanding obstacles at high water level are the second waterfall (1.50m high) and the last one at the end to reach the metal handles.

We did this cave twice once in February with a low water level easy to manage and in April with a higher water level. It was very challenging, we had to help each other, and although wearing a wetsuit it was pretty cold.

Weather Castle Hill

Precipitation occurs throughout the year. The wettest month is October and the driest February. The annual rainfall is roughly 1000 mm in comparison Arthurs Pass experiences about 4.500 mm a year. January is the warmest month but on average still below 20°C. Anyhow during summer temps around 25°C can happen. Almost freezing temps during winter.

Accommodations Close to Cave Stream

There are just two lodges next to the Cave Stream adventure. The Porters Lodge is situated in the mountains and has more a hostel character with an excellent restaurant. The other option is the Springfield Motel and Lodge. They offer well-equipped studios and rooms with shared facilities. 

Cave
NZ New Zealand