I'm going to Kalon Surf School this summer and am interested in a day trip or possibly extending my vacation to visit Corcovado National Park. Is it worth it to go to the park for one day (i.e. a day trip from Kalon)? or should I spend a few days at the park? What wildlife can I expect to see? I would also like to spend a few days at Arenal at the end of my trip as well. How much time will I need there? What's the best way to get there from San Jose? Thanks for your suggestions.