Don Hoi Lot was formed by the sedimentation of sandy soil. There are two zones covered by the bar of 3 km wide and 5 km long Bay, accessible by boat; and Don Nai on the beach of Chuchi Village, Bang Chakreng Subdistrict and the beach of Bang Bo Village in Bang Kaeo District, both accessible by car. A variety of shellfish are found in the area of the bar including Hoi Lot (razor clam), Hoi Lai (undulated surf clam), Hoi Puk (Ridged Venus clam), Hoi Pak Pet (tongue shell), Hoi Khraeng (cockle), etc. Found in the biggest amount are razor clams, making them a symbol of this place. Hoi Lot is a species of bivalve mollusks with muddy white meat in a straw-shaped shell. As the razor clams live in mud, to catch them, during low tide when the land is not flooded, a small stick that has been dipped in lime will be put into a hole where the shellfish live so that they will emerge from mud and can be caught easily. The best time to visit and explore Don Hoi Lot when the tide is not high is from March to May of every year.