Hi- My husband and I are planning a trip in May for 7 nights. The 3 places we are interested in going are Manuel Antonio, Arenal and Montezuma on the Nicoya Penninsula. Is this too much for a week long trip? And if so, which 2 places out of the 3 would you recommend? We definately want to go to MA, so it's a choice between Montezuma and Arenal. We love the beach, but want some good rainforest too. Any advice would be appreciated. We are renting a car and flying to/from San Jose. Thanks!