1 Best Sight in Alvor, The Algarve

The covelike Praia dos Três Irmãos has lots of little rocks in the water, which means it can either be great for snorkeling or bad for unwitting toes, depending on the tide. If it gets too crowded, there's always space to spare on one of the beaches either side. Amenities: food and drink; lifeguards; parking (no fee); toilets. Best for: snorkeling; walking.