Koh Bubu offers a small beach next to a little restaurant. Only a few people come here for a one-day trip or an over-night stay in one of the bungalows.
You can get to the island from Koh Lanta / Old Town pier by longtail taxi within 25 minutes or by cajak within 60 minutes (althought the waves can get quite high, depending on the weather).
It is also possible to go by longtail boat from Koh Por to Koh Bubu in appr. 15 minutes.