The only bad experience we had was on the walk through the national forest in Manuel Antonio. It was miserably hot and humid, with no breeze at all. You had to carry your personal belongings with you, including a big beach towel, so you could stop at the beach for an hour swim during the hike. After the swim, you had to hike another 20 minutes to get out of the park. You have to cross a stream and it is rocky
have to say this part makes me think we were on different trips! I did not have same experiences they carried towels and I went end of July temp never got over 80. Te hike in the park was great with a lot of natural wild life.