Ask every operator to brief sites by island and exposure, not just by difficulty label. St. Vincent's leeward coast is often the easiest place for repeat diving in mixed weather, while Bequia headlands and outer Grenadine reefs can add more current and surge. In Tobago Cays Marine Park, scuba divers must be accompanied by staff from a registered local dive operator. Use an SMB, stay close to the boat plan, and do not underestimate how quickly forecast changes can affect day-boat routes in the southern Grenadines.

Serious medical backup is strongest on St. Vincent, where Milton Cato Memorial Hospital in Kingstown handles A&E. Smaller hospitals or health centers support Bequia, Union Island, Canouan, and Mayreau, but advanced care is more limited. For dive travel, carry insurance that covers evacuation and diving incidents, and confirm the operator's emergency action plan before the first dive. Do not assume local hyperbaric availability without direct, current confirmation from your operator and insurer.

Saint Vincent and the Grenadines protects key marine areas through the Tobago Cays Marine Park and a broader network of marine conservation areas including Bequia, Canouan, Mustique, Petit St. Vincent, and Union Island/Palm Island. In Tobago Cays, do not touch coral, anchor in coral or seagrass, take marine life, fish, discharge bilge or wastewater, disturb nesting seabirds, or bring pets into the park. The park also notes a five-knot speed limit. National turtle protections have strengthened since the 2017 turtle harvest ban, and turtle monitoring runs each nesting season from April through November.