Burma Snorkeling
The SY Cataleya runs excellent 9 day 8 night join in snorkeling excursions from Kawthaung. Trips run from December to March.
There is still space on the trip departing 23 Feb and berths are being offered at a reduced price to fill the cabins. There is a double or twin cabin available at 66,000 baht per person.
You can see more details of the boat here: www.snorkelingthailand.com/sy-cataleya-sailing-cruises-in-myanmar/
These are snorkeling only trips, there are no scuba tanks onboard.