Hi,

I have ~1M miles between my Delta Amex and my Chase Sapphire reserve. Need a free beachside getaway this winter (and I know I'm late in planning)

Info:
Departing from CLE or DTW
Want to stay on points (expensive year for renovating my house). Just me
Don't need big convention hotel (hah), golf or casino or fancy dinners or all inclusive (prefer to shy away from it, actually)
Nice room, nice beach (or fantastic view with fantastic beach within driving distance)
Snorkeling in close driving proximity (I spend most of my vacation reading, exploring by car and/or snorkeling)
At least 7 days, up to 10 or 14. Dates can be flexible
Thinking Caribbean, but could be convinced to go elsewhere

I've stayed at the Marriott on Grand Cayman and Westin (?) on St John. Was thinking about the Westin on Vieques, but was bummed to see that it never reopened.

Prefer less travelled (hah, on points). However, for an idea:
Places I have or would return to
North Shore of Grand Cayman,
Little Cayman/Cayman Brac
St John (Coral Bay)
Virgin Gorda
Placencia Belize

Would consider returning to
Bonaire
Hawaii
Thailand (away from Phuket)

Don't care to revisit
St Thomas
Tortola
Riviera Maya
Acapulco

Points only....ideas welcome

Thx