Originally Posted by
mahasamatman
But some of the best diving in the world is a 15-20 minute flight away on Saba (which has the shortest commercial runway in the world I believe).
Diving...but not snorkeling

...as the reefs there are fairly deep due to drop off
15-20 minute flight away...
...probably can say that about many other SPG resorts:
Aruba -> Bonaire
Sheraton and Westin Fiji: Nadi -> Yasawa Islands
Le Meridien and Westin Cancun -> Cozumel
But Saba would be an inviting day trip from St Martin if you're adventurous and have already visited Anguilla and St Barts^