St Felix beach in the south of Mauritius. Honestly the best public beach I’ve been to. The facilities are pretty standard but the park is well established with big trees, lots of space and well kept lawns. The beach is wide and the water gets very shallow at low tide, exposing corals and giving glimpses of fish up close. We watched octopus fisherman ( hunters?) walk out to the reef edge in water only up to their knees.
Definitely worth a stop if you’re doing a drive along the South coast.