LX4 is on one of 3 small islands off the western coast of Koh Chang, which in turn is the 2nd largest Thai Island.
Once you get to Koh Chang, you can get a kayak or a small motorzied boat at one of the sea side resorts. The islands are about 2.5Km from the larger island. Expect up to an hour on the sea.
I've seen some people drag their kayaks out onto the island, but most boats will have to stay anchored in the water. If you come in something other than a kayak, expect to swim a short distance to the shore. (I'm really not a good swimmer, but the water was calm enough for me to make it to the shore with two heavy boots hanging over my neck quite easily)
If you're into snorkling, there are some really colourful fish in the water in the area.
Items that you should consider bringing
- Water (Can be bought on Koh Chang)
- Waterproof bags (for any sensitive items)
- Snorkel and Goggles
- Extra Batteries
Watch out for loose rocks on the island!
Small note on cache maintenance:
I have asked a friend who lives on the island to keep an eye on it for me.