This is a great website that you can book excursions through and they will handle picking up and dropping off right from your home/condo/hotel that you are staying at.
Sailing-Scuba Diving
Canopy/Zip Lining-Rafting
Surfing-ATV rentals-Paddle Boards
Kelly's Surf Shop
Tamarindo, Guanacaste, Provincia de Guanacaste 1000, Costa Rica, 2653 1355