Panama's coast - a holiday in itself (4)
I believe the answer is:
hats
I'm afraid I can't explain this answer.
Can you help me to learn more?
(Other definitions for hats that I've seen before include "Headwear" , ""Porkpie" and "pillbox" attire" , "Milliner's stock" , "Headdresses" , "Headgear" .)