Ruin ValleyFireRed&LeafGreen
"A secluded valley on Six Island with the Dotted Hole at the end. The Sapphire for Celio's network quest is inside, but a Team Rocket scientist gets to it first."
RUIN VALLEY MAP
Isolated valley on Six Island. Surf to reach the entrance from Water Path. Once inside, the valley floor is walkable with the Dotted Hole at the back.
Pokemon Encounters
Natu at 25% and Yanma at 10% are the Johto highlights, both scarce elsewhere in FRLG. Wobbuffet hides at 5%. Wooper at 100% surfing and 10% walking gives easy Water/Ground coverage.
Old Rod1
Good Rod3
Super Rod5
Magikarp
Also found in 41 other locations
ITEMS
Sun Stone evolves Gloom into Bellossom or Sunkern into Sunflora. HP Up and Full Restore fill out the pickups in this remote Sevii corner.
HP Up
A nutritious drink for Pokemon. It raises the base HP of one Pokemon.
HP Up
A nutritious drink for Pokemon. It raises the base HP of one Pokemon.
Full Restore
A medicine that fully restores the HP and heals any status problems of one Pokemon.
TRAINERS
Hikers and Ruin Maniacs with Rock and Ground-types up to level 50. Five fights that any post-game team should walk through.
Daryl
Ruin Valley Guide
Ruin Valley on Six Island connects to Dotted Hole, where the Sapphire gem is hidden. You need Strength for the boulder paths and Cut to open Dotted Hole's entrance. Wild encounters range from level 15 to 52 and include some uncommon species like Natu, Yanma, and Wooper that are rare elsewhere in FRLG.
Islands One through Three unlock after you beat Blaine on Cinnabar Island. Bill takes you there as part of the story. Islands Four through Seven require beating the Elite Four first, then completing Celio's Ruby and Sapphire quest on One Island to get the Rainbow Pass.
You can physically reach all seven islands without it, but evolved Johto Pokemon only show up in the wild after you get the National Dex. That means 60 or more Pokedex entries plus completing Celio's quest. If you're only seeing Kanto species, that's why.