Club Orient is clothing optional. Which means you wear clothes if you want. Don't wear clothes if you don't want. Regarding walking to the Village after night, I personally wouldn't do it with just two people. In a group of 4 or more, maybe, but if you do plan to do that, make sure you bring a flashlight, as there are no lights for most of the trip. I personally would not do it after night, but I am more cautious than many people. You might consider going for an early dinner and walking to dinner before dark and possibly getting a cab for the return trip. Or have a big lunch somewhere during the day, when you can walk there without any problem, and then having a lighter dinner, either in your unit or at Papagayo.