When you feel like you need to get away from all that sightseeing, stretch out in the sun at Taal lake. Pack a picnic or your favorite book ... This is the place to switch to relax mode!
When you've finished at this body of water in Calabarzon, why not make your way to Taal Volcano, Lake Taal, and Mt Maculot? They're not very far from Taal lake and also a favorite with many travelers.
