The first thing most people think of when they visit Mandvi is visiting the seashore. Mandvi Beach is the closest to the town center, across the bridge to the east side of the river, then down the road past a place called Salaya, accessed from just near the Kashi-Vishvanath Temple (sometimes the beach is called Kashi-Vishvanath Beach.) Wind Farm Beach is 7 km west of town, named for the windmills that line it to generate electricity for the area. You can get fresh coconuts and other snacks, swim in very pleasant water, and enjoy a nice view of the coastline.
The Maharao's private beach, behind Vijay Vilas Palace, is 8 km from town, and requires a small fee (the other beaches are free and open to the public). More secluded than the others, the Vijay Vilas Beach has nice white sand, lovely places to swim and accommodation available in air-conditioned tents along the shore.