We flew from SJU to EIS on Thursday. InterCaribbean checked for Vax cards and negative test, as expected. They also wanted proof of our return trip, surprisingly.....which sent me digging thru my bag....they were satisfied finally when I produced our water taxi reservation (BVI to St. Thomas) and STT flight home. No one asked for proof of insurance at SJU nor on entering BVI.

By contract, our friends arriving the same day via STT were double and triple checked at the ferry for vax, neg covid test AND proof of insurance.