3 buddies and I are going backpacking in Costa Rica for a week during our Spring Break in March. We are looking for the cheapest, best way to experience Costa Rica and have an adventure doing it. We're flying into San Jose then planning on Heading to the Pacific Coast. I heard Montezuma, Manuel Antonio, and Coco/Flamingo Beaches were good places. Tell me, are we going to be able to go and just make reservations at hostels along the way? Or are they in Montezuma, etc going to be full? Can one really get by with about $30/day? We want to do some activities but only those that are within our expenses. Any suggestions of things you must do and best places to do them? Where are some good hidden treasures, like jungle swimming holes or waterfalls that we can hike to for free? What are the places we should try to stop at and what places are good to skip. We're looking more for adventure and laid back people rather then partying at discos. I heard Jaco is fun but considered the "armpit" of Costa Rica. Any advice to help us along the way would be much appreciated!