Ride the Sky Explorer chairlift up to Sentry Hill, the island's highest peak, for a panoramic crawl over the rainforest canopy down to the sea, then strap in and drop off the world's steepest zipline. It's the port's marquee adrenaline experience, set in the Rockland Estate rainforest with full Caribbean views the whole way down. Book a time slot ahead so it locks neatly inside your port window.
What to expect
You'll begin at the Rockland Estate rainforest base and ride the Sky Explorer chairlift up to Sentry Hill, the island's highest point, gazing out over unbroken Caribbean views as the canopy passes beneath you. At the peak, you descend the zipline—the world's steepest—in a single exhilarating run that carries you down toward the sea with the rainforest spread below the whole way. The day includes access to the on-site museum and parking, so the rhythm is lift up, zipline down, then cool off and explore before heading back to port, all anchored within your booked time slot.
Cruise lines resell this exact estate as their land-adventure excursion, marked up over the gate price. Booking direct at $109 (or $98 with EARLY10) locks your own time slot and skips the ship's surcharge — typically a $20–40/person saving versus the line's version of the same attraction. No independent equivalent exists; this is a single-operator landmark, so direct is the only honest way to do it.
Good to know
Book your time slot directly at Rainforest Adventures (not through the cruise line) at rainforestadventuresmaarten.com using promo code EARLY10 to save 10%—bringing Flying Dutchman from $109 to $98 and avoiding the line's $20–40 surcharge. The park operates 11am–4pm; factor in 30–45 minutes from Philipsburg pier by taxi to Rockland Estate, plus 2–3 hours on-site for the full experience, leaving a 90-minute buffer before all-aboard. Wear closed-toe shoes (required) and bring reef-safe sunscreen; WiFi and museum access are included, so you can confirm your return transport before leaving the facility.