阿姍,能推薦一下你波多黎各遊記中提到的潛水及住宿嗎?

阿姍,能推薦一下你波多黎各遊記中提到的潛水及住宿嗎?
I plan to spend a four-day weekend in puerto rico and am thinking of taking some scuba diving lessons (first timer). It seems I shouldn't stay in San Juan if my main activities are outdoors.Will it be too risky to look for lodging after landing?

Many thanks.