We have taken most advice from previous posts. We are having 3 nights in San Jose, one day at La Paz Waterfall Gardens. We may only be able to do part but decided to give it a go. Two nights Tortuguero, 3 nights Arenal (Cano Negro tour included) Monteverde 2 nights, Guided tour of Cloud Forest Reserve. Manuel Antonio 4 nights; Damas Estuary Boat Trip and guided Nation Pk Tour. Anywhere Costa Rica has booked hotels, tours and shuttles. We fly back to airport fgrom A.M. Because of weight restrictions we want to travel light. We know about sunscreen bug spray, etc. but wonder what kind of clothes we need. Are modest shorts acceptable ? Will we need warm clothes (plan to have a very light jacket). Special shoes or runners O.K. Looking forward to our trip immensely and weould appreciate any advice or tips for us oldies. Many thanks to all you experts !