If you’re heading down to the south of Lao, then the massive Ko Long Cave is worth a visit. The cave is 7.5km long and runs through the heart of tall limestone mountains, surrounded by the Phu Hin Bun National Park.
The only way to visit the cave is to take a boat (100,000 kip for boat hire, plus 5,000 per person entry fee) which will take you through the entire length of the cave until you appear out the other side, making a stop in the middle to take a look at the stalactites that have been lit up.
Ensure you take a good torch (or hire one at the entrance for 5,000 kip) as apart from lit display of stalactites midway through your journey, it is pitch black.
As you putter through the cave you will notice that it really opens up and is a cinematic 100m high in some places. You may also be lucky enough, or unlucky depending on how you look at it, to see the fist sized spiders that live in cave. Luckily we didn’t, as I am not that great with bugs.
As you appear out of the other side of the cave your boat driver will moor up to the river bank where there are a few stalls selling refreshments, snacks and basic meals. Stay here for a little while, if only to give your bum a rest from the hard wooden seats on the boat.
You will then take the boat back through the cave and will end your journey where you started. Allow around 2 ½ – 3 hours for your visit depending on how long you wish to spend looking at the stalactites, and at the village on the other side of the cave.