Most likely not. It isn't near the top of my list of destinations, of which, I probably won't get around to visiting very many of. I basically have England, Ireland, Italy, and Greece at the top of my list. Then probably Australia. Add in the fact that I have US destinations such as Hawaii, Guam, and the Virgin Islands.
"Sport Diver Magazine, a popular bimonthly publication dedicated to informing the world’s diving enthusiasts about the latest and greatest in dive locations, equipment and such, recently published in their November/December 2000 issue the “10 Great Cavern Dives Around the World”, listing Saipan’s Grotto as number two, beating out Guam, Hawaii, and the Caribbean."
https://www.saipantribune.com/index.php/968ad7e4-1dfb-11e4-aedf-250bc8c9958e/