I never seem take a "real" vacation or at least I haven't had a "real" one in probably a decade. I only seem to take 1 - 2 days here or there for regional outdoor activities. I'm due and I'm looking for advice or recommendations on a new spot.

Requirements:
Sun
Beach
Hammock
Peace and Quiet (no drama or unnecessary BS)

Looking to go maybe 2 - 3 weeks for $5K and under. I don't need any fancy accommodations and would be perfectly happy with a grass hut on the beach. Bonus if the local gals have nice butts and the food is good.

Right now, I'm thinking Costa Rica, Panama, Columbia, Vietnam, Cambodia or Thailand. I really just want to beach n' chill and am not looking for anything too action packed. Sure, some easy local sightseeing would be cool or a maybe a panga rental for a day or two. I'm a serious "over-planner", to the point of fault, so on this trip I'd kinda like to just buy a ticket and figure it out when I get there.