This will be our first time to Costa Rica. Traveling with my girlfriend, both in our mid 30s. What part of Costa Rica do we pick? We are looking for a beach location (good for snorkeling and fishing). We do not want to have time taken up with a lot of traveling from airport to beach location. Also would like a location with fun bars and restaurants, preferably within walking distance. We will be traveling in late May. Looking to spend around $200 US per night. Thank you!