If I were shaping a Sarawak trip around one serious rainforest detour, I would give Mulu several nights instead of trying to turn it into a hurried day trip from Kuching. The flight connection, transfer and weather are part of the route, not small details to solve at the last minute. [image: 1787798294462-mulu-landscape-small.jpg] Source: Wikimedia Commons — Gunung Mulu National Park. Sarawak, Borneo (14358333418) Mulu is in Sarawak’s Miri Division and has no useful drive-in shortcut from Kuching. Once you arrive, the choice is quite clear: show caves and marked walks for a manageable first visit, or longer treks, boat sections and adventure caving for travellers ready to give the park more time. The official programme currently covers all of those styles, so the group should agree on pace before booking. [image: 1787798295004-pinnacles-resized.jpg] Source: Wikimedia Commons — Mulu Pinnacles I would book at least two nights and prefer three if the itinerary allows. That leaves breathing room for flights, wet paths, boat transfers and activities that depend on guides or park arrangements. Proper shoes, a dry change of clothes and a small waterproof layer matter more here than packing for a quick photo stop. [image: 1787798295712-clearwater-resized.jpg] Source: Wikimedia Commons — Boat landing at Clearwater Cave, Gunung Mulu National Park, April 2025 01 The reward is the sequence: river approach, limestone walls, huge cave chambers and lowland rainforest, rather than one single viewpoint. People who enjoy geology, walking and a slower trip will get more from Mulu than visitors looking for cafés, easy parking or a compact attraction beside Kuching. Families can keep to the gentler programme, but wet surfaces and boat steps still deserve care. [image: 1787798296789-winds-resized.jpg] Source: Wikimedia Commons — Cave of The Winds, Gunung Mulu National Park, April 2025 01 The park and its activities are currently listed as operating, with accommodation and tours available through the official Mulu site. Fees, packages, guide arrangements and last-entry details can change, and rain or maintenance can affect individual routes. Check the current activity and booking pages before fixing flights; a tour being listed does not guarantee every cave or trail will run on your dates. Mulu is worth the extra logistics when you want Sarawak to feel wide, wet and properly wild. It will disappoint anyone expecting an easy two-hour city outing, but that is also the point of choosing it. Would you start with the show caves, or keep more days for the longer trails?