The Pran Buri River gives the town its landscape: inland farms and mountains upstream, mangrove channels at the mouth, and the fishing village of Pak Nam Pran where fresh water meets the Gulf. You see it best around the forest park and estuary.
Boat trips sometimes run through the mangrove channels, but even without one the river is worth building into a visit. Walk the boardwalk in Pran Buri Forest Park, then continue toward Pak Nam Pran to see the working side of the coast.