Attraction Details :
Lying about 7.5
kilometers offshore from Pattaya, this island offers several white sandy
beaches such as notably Hat Ta Waen, Hat Laem Thian and Hat Thong Long
while there a bunch of coral reefs on the otherside of the island.
Visitors can choose either snorkeling or viewing the coral from glass
bottom boats.Contact: TAT Pattaya 038-427-667, 038-428-750, 038-423-990
Getting there: A ferry service departs Laem Bali Hai Pier to Ko Lan everyday. Departure time is from 7.00 a.m.-6.30 p.m., while the arrival trips leave Ko Lan from 6.30 a.m.-6.00 p.m. It costs 20 baht. The boat will stop at Na Ban Pier. In case of going to other beaches, visitors can rent a boat or a taxi. There also are speed boats for 10 persons are available along Pattaya beach. Visitors can stop at Ta Waen Beach and Thong Lang Beach. The rental fee for the speed boat is 2,500-3,000 baht or depending on the agreement.
http://www.tourismthailand.org/See-and-Do/Sights-and-Attractions-Detail/Koh-Lan--557