Gunung Mulu National Park lies in the interior of Sarawak, on Borneo in Malaysia, and it is best known for its caves. Deer Cave is one of the largest cave passages known, and at dusk millions of bats leave it in a long spiral that you can watch from a viewing point. Clearwater Cave has an underground river, and the Sarawak Chamber is among the largest cave chambers known. Above ground, the Pinnacles are sharp limestone spires reached by a steep trail through forest.
The park is a UNESCO World Heritage Site. Its rainforest surrounds Mount Mulu, a sandstone peak whose multi-day climb needs a permit and a guide. Most travelers fly from Miri and stay in lodges near park headquarters. The trip suits people who want caving and jungle walks more than beach time. April to July are the drier months and the most comfortable, though rain falls year-round. Plan at least two full days, and three or more if you want to climb Mount Mulu.
Gunung Mulu National Park in five
- Book the Miri to Mulu flight earlyScheduled flights from Miri (MYY) land at Mulu airstrip (MZV) on small planes with few seats. Book the flight before you fix your dates in the park.Getting around
- Book cave tours and the Pinnacles permitThe caves and the Pinnacles trek need a licensed guide and a permit. Book through the park office or a registered tour operator, and confirm the date before you fly.Tours and tickets
- Carry ringgit cash for the parkLodges and small operators inside the park may not take cards. Bring enough Malaysian ringgit (MYR) for the whole stay, including tips for guides.
- Pack leech socks and a rain jacketLeeches live on forest trails and get through laced boots after rain. Pack leech socks and a waterproof shell. The rainforest stays wet all year.Packing lists
- Time the Deer Cave bat flight at duskThousands of bats leave Deer Cave at dusk each evening. Ask your lodge or operator for the evening viewing time when you book.
Things to do in Gunung Mulu National Park
See all attractions in Gunung Mulu National ParkNeed to know
- Currency
- Ringgit (MYR)
- Entry
- Visa-free for many passports; fill in the MDAC before arriving Read more
- Emergency
- 999 police, ambulance and fire
- Tipping
- Not expected; some hotels and restaurants add a service charge
- Time
- UTC+8, no daylight saving
Weather by month
- Best
- Good
- Mixed
- Poor
- JanuaryHeavy rain
- FebruaryWet season
- MarchDrier, improving
- AprilDrier season
- MayDrier season
- JuneDrier season
- JulyDrier season
- AugustStill drier
- SeptemberRain returns
- OctoberRain returns
- NovemberWet season
- DecemberHeavy rain
Right now in Gunung Mulu National Park
Local time, today's weather and the exchange rate, refreshed through the day.
24
- Feels like
- 29°
- Humidity
- 98%
- Wind
- 4 km/h
- Chance of rain
- 100%
Gunung Mulu National Park
04:41 AM
Tuesday, November 3
- Today27°20°100%Tuesday: Rain. High 27°, Low 20°. Chance of rain 100%.
- Wed28°20°98%Wednesday: Drizzle. High 28°, Low 20°. Chance of rain 98%.
- Thu27°20°96%Thursday: Rain. High 27°, Low 20°. Chance of rain 96%.
- Fri28°19°100%Friday: Rain. High 28°, Low 19°. Chance of rain 100%.
- Sat28°19°100%Saturday: Drizzle. High 28°, Low 19°. Chance of rain 100%.
- Sun28°20°100%Sunday: Drizzle. High 28°, Low 20°. Chance of rain 100%.
- Mon26°19°100%Monday: Rain. High 26°, Low 19°. Chance of rain 100%.
Updated 12:50 AM local time · Powered by WeatherAPI.com · Weather data by Open-Meteo.com
Money
Mid-market rate1 USD = 4.057 MYR
Rates from Nov 2, 2026 · Rates By Exchange Rate API
Before you go to Gunung Mulu National Park
Rules for Gunung Mulu National Park, checked
- Enter the caves and the Pinnacles trail only with a licensed guide, and stay on the marked routes they set.
- Removing rocks, plants, animals or cave formations from the park is prohibited under Sarawak's park rules.
- Visa-free entry depends on your passport; check the Malaysian immigration site before you book.Source
Plan around Gunung Mulu National Park
Sarawak state, the gateway region and its towns
Read the guideAll of MalaysiaEntry basics, money and regional planning
Read the guideGetting around SarawakFlights from Miri, boats and park transfers
Read the guideWhere to stayPark lodges and the towns nearby
Read the guideTours and ticketsGuided cave tours and the Pinnacles trek
Read the guideTravel insuranceMedical cover for remote jungle trails
Read the guideGunung Mulu National Park FAQ
How many days do I need in Gunung Mulu National Park?
Three nights covers the Deer Cave bat flight, Clearwater Cave and a day in the rainforest. The Pinnacles trek is a separate multi-day hike, so add days for it.
When is the best time to visit Mulu?
April to July, when the rain is lighter. The wet season from about November to February brings heavy rain and higher river levels.
Is Mulu suitable for people with limited fitness?
Cave tours and the boardwalks are manageable for most people. The Pinnacles trek is steep and physically demanding, so choose a shorter walk if you are not fit.
Is there mobile signal in Mulu?
Signal is patchy around the park and does not reach inside the caves. Download offline maps and your tour confirmations before you travel.
What should I wear for the caves?
Closed shoes with good grip, long trousers and a headtorch. The cave paths are wet and muddy, and a dry change of clothes helps for the flight home.

