If you are looking for a beautiful beach destination near Bangkok, I would like to recommend Koh Larn to you.
Koh Larn (Koh means island) is located in Chonburi province, in the East of Thailand, it's easy to travel to. (It's approx. 1.30 - 2 hours driving by car from Bangkok.)
Even though Koh Larn is just a small island, it is an island with extremely beautiful and rich marine nature.
There are many beaches in Koh Larn that have sandy white. The sea is blue and crystal clear.
There are also coral reefs around where you can go snorkeling to see coral reefs in shallow water.
Koh Larn is pleasing to both Thai and foreign tourists because the sea view is wonderful which can be comparable to the sea view of the South of Thailand.
Koh Larn has, therefore, become one of the most popular seaside and one of the best vacation destinations of Thailand.
On your next trip to Thailand, don't forget to consider Koh Larn for one of your travel destinations.