There is an alternative taxi / boat / taxi shorcut to the grueling 8 hours ride between Monteverde Cloud Forest and the Arenal Volcano. See http://www.monteverdeinfo.com.
Limón is an incredible place, I love it! Great beaches and cool people. If you are going back to San José, don't even think to eat or spend time in Burger King of Guápiles. The worst of the worst in the world.
Over the last 2 years Quepos has boomed. Manuel Antonio is becomming prohibitively expensive and so Quepos has grown to accommodate the medium to budget traveller. According to the Tico times it has the most even mix of 4 categories of people, ticos on vacation, ticos that live there, ex pats, and foreign tourists. All the night life is in Quepos so if you are not staying there you have to get a bus or taxi.
Hey all travellers Alajuela is the best town in CR to spend a couple of nights before heading for the beach or the mountains. It's only five minutes away from the airport and a taxi ride to there is only like 2 bucks so it is a great deal, it is very clean and much more safer than San Jose, you should visit it.
I love Santa Teresa -- very nice spot for surfing and to party too. The beach is huge and very beautiful. We had really a good time.
Limón I've traveled the world and Limon has to be my best find. The people and their hospitality blew my mind. Making plans to return and and stay awhile.
The best place to procure your drugs, especially crack or "el puro," is from one of the gypsy taxi drivers behind the bus station. You won't even have to look, as they stand outside their cars yelling out what they're selling. It's very hot and humid in Quepos and pretty expensive, but the beaches are lovely. If you can afford to stay on the beach, you'll probably have a wonderful time, but if you have to stay in Quepos, you are less likely to enjoy it.
I was in Quepos and Manuel Antonio three years ago. I found theses places very interesting and unique due to the great combination of dark green of the tropical forest and the navy blue of the Pacific Ocean. It is absolutely awesome and one of the must see places in the whole world.
Quepos Go on the nature hike through the Manuel Antonio National Park. You will see monkeys playing through the garbage like little kids, or in some cases big kids (ha). Anyways, if you have very sharp eye you will likely see sloths up in the trees as well.
Santa Teresa Great place, but if you don't surf, not much point of going there. Kinda expensive, besides surf beaches are quite dirty. Great spot, but will never go back.
Liberia If you go in the park, make sure you don't sit on the benchs, you will be a target for bird droppings! But I recommend going to El Paso Real, it's a restuarant in the square and it has amazing food!
Hostelz.com is the only hostel guide with complete information and reviews on all youth hostels and backpackers worldwide.