Only accessible after the SecretPotion has been given to Jasmine in Glitter Lighthouse, Route 47 is vastly different from all other routes in Johto, being carved out of the face of the sheer cliffs west of Cianwood.
The route begins rather high up as Trainers exit from Ragged Cliff Gate, and heads due west past a Hiker, where it takes its first branch. From here, Trainers can go north two paces and into Cliff Cave, which connects the various levels of the route, or continue westward across a bridge in front of a roaring waterfall. There is very little across the bridge, however, as only a Camper appears, guarding the player from a Revive.
Inside Cliff Cave, the player can either go up or down; each path contains its own perks. Going down and out from Cliff Cave leads the player to the sea, where they can explore, and with HM07 (Waterfall), climb to the only long grass on the route.
Further west is another waterfall; climbing it will lead the player to a White Flute, otherwise unavailable unless transferred from Hoenn by way of Kanto's Pal Park.
Another relation to Hoenn lies further west along the lower path, accessible only with HM08 (Rock Climb): Hidden Tower, the whereabouts of Kyogre (in HeartGold), Groudon (in SoulSilver), or Rayquaza (if both are captured and shown to Professor Oak). West from the entrance to Hidden Tower is the westernmost accessible point in Johto, a small spit of beach at the bottom of climbable rocks.
The upper path, however, is the only one that will take travelers to Route 48 and Johto's brand-new Safari Zone, however, as soon as one exits the Cliff Cave, a Double Team will challenge them. Afterwards, passage is free to the west, across several bridges over beautiful waterfalls, and eventually onto a grassy path near a billboard advertising the Safari Zone. North of here are the final Trainers on the route, a Young Couple, and a bit further north, Route 48.