The resort Arenas Del Mar is a beautiful beach resort on the Pacific Ocean and adjacent to the Manuel Antonio National Park. The 11-acre property is steeply sloped, as it lies on the mountains that run right to the shoreline. Making the climb from the beach to anywhere -- our room or the main open-air communal area, which sits at the top of the property and features a pool, dining room, tiny gift shop, health spa, bar, and the front desk -- is an exertion that reminded me of just how out of shape I am. Temperatures around 90 degrees and humidity befitting a rain forest compounded the fatigue. Yes, I promised myself, I will start working out again when we get home. Luckily, golf carts are always available to make getting around easier. The resort has 38 rooms The buildings, pools, and cart-trails were surgically placed among the rain forest. Down by the ocean is another communal area, with a small open-air restaurant, bar, and pool. Our room was on...