I believe that bow of the the red and white boat visible under the Tiki hut is a traditional Hawaiian outrigger.
The outfit he is wearing looks like the same one he was wearing, perhaps on the same day, which was also at the beach, IIRC.
Well maybe just a lifeguard station...not a Tiki hut...
photograph taken around the same time...different clothes, same cap?
You have a good memory. I read yours after posting this:
http://www.freerepublic.com/focus/bloggers/2702976/posts?page=1386#1386
...which confirms what you say.