If you're planning a bit of sightseeing during your trip, head to Castle of Riomaggiore— just one of the monuments in central Riomaggiore. Hotels.com travelers also say the area is walkable and has lots of nice beaches.
If want to top up your tan, you might want to head out to Guvano Beach, located 0.5 mi (0.8 km) from central Corniglia. Enjoy the sunset by the shore at Vernazza Beach, Fossola Beach, and Monterosso Beach.