While you'll likely have a good connection on the boat ride out from St. Croix as you get closer to the shore, be prepared for intermittent or no signal once you're actively snorkeling around the beautiful coral reefs of Buck Island. It's a pristine natural park, and connectivity can be a bit like the ocean currents – sometimes there, sometimes not! Enjoy the underwater world, and your SouthESIM will reconnect as you head back towards land.
HELP CENTER
Can I expect SouthESIM coverage at Buck Island Reef National Monument in USVI?
Updated April 22, 2026
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