Dunn's River Falls

Where it sits. Dunn's River Falls drops out of the hills of Saint Ann parish and into the Caribbean about three kilometres west of Ocho Ríos, on Jamaica's north coast. The cascade is roughly 55 metres high over a run of about 180 metres, ending directly on a sand beach — one of very few waterfalls in the world that discharge straight into the sea rather than into another river. The water arrives cold, clear and hard, having filtered through the limestone plateau inland, and it runs over a staircase of terraces, plunge pools and shallow ledges shaded by a canopy of guango and almond.

Why the rock keeps growing. This is a travertine, or tufa, waterfall. The river carries dissolved calcium carbonate picked up from the limestone; when it hits open air and turbulence, carbon dioxide comes out of solution and the mineral precipitates back onto whatever the water touches — moss, leaves, gravel, the rim of a pool. The result is that the falls actively rebuild themselves, adding rock each year and slowly changing shape, which is why the climbing route is not fixed and why the terraces have the porous, sponge-like texture underfoot that makes them grippy when wet. Very few travertine systems anywhere are both this active and this accessible.

The history around it. The bay below carries a name that is routinely mistranslated. Ocho Ríos is not eight rivers; it is a corruption of the Spanish las chorreras, the spouts or waterfalls, describing exactly this cascade. In 1657 the shore here was the site of the Battle of Las Chorreras, in which English forces under Edward D'Oyley destroyed a Spanish expedition landed from Cuba to retake Jamaica — one of two engagements that settled the island's colonial future. The falls have been a visitor attraction since the nineteenth century and have been managed by the Urban Development Corporation for decades; they now receive on the order of a million visitors a year, most arriving with the cruise ships that dock in Ocho Ríos.

On screen. The falls are part of the Jamaican location work behind Dr. No (1962), the first Eon Bond film, directed by Terence Young with Sean Connery in his first outing as 007. The film's fictional island of Crab Key was assembled from this coast: after landing, Bond, Honey Ryder — played by Ursula Andress, whose emergence from the sea was shot on the private beach at Laughing Waters a few minutes west — and the Cayman fisherman Quarrel, played by John Kitzmiller, move inland along a freshwater river and shelter in the cascades while Dr No's patrols hunt them, the sequence that gives the film its river-and-jungle texture before the interiors take over at Pinewood. Ocho Ríos supplied further locations, including the bauxite pier used as Crab Key's dock. Dunn's River appears again a generation later in Cocktail (1988), where Tom Cruise and Elisabeth Shue swim beneath it in the film's Jamaican act, and it has served countless music videos since.

What a visit involves. The point of coming is to climb. Groups form human chains led by a guide and go up the terraces from the beach, taking between 45 minutes and an hour and a half depending on numbers, with exit points along the way for anyone who has had enough. Water shoes are essential and can be rented at the entrance; the rock is grippy but the algae is not, and the pools vary from ankle-deep to swimmable. A dry staircase runs alongside the whole climb for spectators and for the return. Facilities at the top include changing rooms, lockers, a craft market and food stalls; the beach at the bottom has loungers and a snorkelling area.

Managing the crowds. When two or three cruise ships are in port the falls can take several thousand people in a morning, and the climb turns into a slow queue. Ships generally dock early and leave in the late afternoon, so the practical strategy is to arrive at opening, around half past eight, or after three in the afternoon. Entry is charged in US dollars or Jamaican dollars, with a lower rate for Jamaican residents, and guides work for tips on top of the ticket.

Getting there and timing. Ocho Ríos is about two hours east of Montego Bay along the north coast highway and roughly the same from Kingston over Fern Gully and Mount Diablo. Route taxis run past the entrance from Ocho Ríos in a few minutes. December to April is dry and reliable; heavy rain upriver can raise the flow enough for management to close the climb, and the June to November hurricane season brings the wettest weather. The falls run all year — this is a spring-fed system that does not dry up.