Billed as the world’s only drive-in volcano, this bubbling sulphur springs site is one of the most memorable and genuinely unique stops in the entire Caribbean — kids absolutely light up when they see the hissing steam vents and grey-yellow mud pools. Admission is approximately $8-10 USD per adult with reduced rates for children; a mandatory local guide accompanies all groups along a short paved walking path through the active crater area. The tour takes about 30-45 minutes and strollers can manage the main paved loop though the ground near the vents can be uneven. The sulphur smell is strong and unmistakable — prepare kids in advance so they are not startled, and keep a close eye on toddlers near the fenced edges. Combine this stop with the nearby Diamond Botanical Gardens and Mineral Baths (separate admission, approx $7 USD adult) for a full half-day in Soufriere.

Address: La Soufriere Sulphur Springs, Soufriere, Saint Lucia

Google Maps: Click here for directions

Cost: Paid $$