Apart from the fantastic walks in all directions, taking coastal paths to lovely beaches (North and South Sands, Hope Cove, Soar Cove), Salcombe and Kingsbridge are great places to explore. Further afield and always worth a visit is Burgh Island, famous for Agatha Christie and its sea tractor.

More local attractions that might interest you, that you need to book in advance are:

The Salcome Gin Experience
https://salcombegin.com/experiences/

Harbour Beach Club Hotel Spa
https://www.harbourhotels.co.uk/our-hotels/devon/harbour-beach-club-hotel-spa/spa-experiences/

Gararock Spa
https://www.gararock.com/experiences/spa/