I have a niece heading down to Aruba in April and is looking to do some diving (not a dive trip). She will be staying at the Divi. Any suggestions on a dive op? The info on the Divi website was not clear as to whether there was an onsite dive op or they arrange or offering diving with off site dive ops. She is a competent recreational diver certified about 6 years ago and maybe 30 dives to date. Thanks in advance