Diglett's Cave

As a whole, the cave runs from the northwest to the southeast, passing under Celadon City, Route 7, and Route 6 as it progresses toward Vermilion from Pewter. There are no points of interest along the cave; however, the cave is the only location where wild Diglett and the rare Dugtrio are found in Kanto.

The usefulness of the cave as a connector route between Routes 2 and 11 has allowed Diglett's Cave to become one of the most important non-numbered routes in the Pokémon world. In fact, after the player enters Cerulean City, the only way to return to Pewter City and Viridian City without using Surf or Fly is to travel through Diglett's Cave.

In Pokémon HeartGold and SoulSilver, Brock will come to the northern entrance and give passers-by his Pokégear phone number. Once defeated in a rematch he appears on late Saturday afternoon to offer a trade to the player.

In Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!, the player is prevented from passing through Diglett's Cave until they have obtained the Thunder Badge or traversed Rock Tunnel.

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  Morning (Diglett)
• 
  Day/Evening (Diglett)
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  Night (Dugtrio)
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  In FR/LG

In Generation II the cave was slightly shorter than in Generation I, and the southern entrance was also in Vermilion City, instead of Route 11 like every other generation.

In Generation III the cave was much longer than in any other generation.

In Generation IV the cave is the same length as it was in Generation II. This makes it one of very few Kanto areas to retain its length from Generation II. The only change is the addition of Rock Climb walls, that allow access to a higher level of the cave.

The cave is restored to its Generation III length in Generation VII.

• In Generation II only, the encounter rate of wild Pokémon in Diglett's Cave varies with the time of day: in the morning, it is twice as high as during daytime, and at nighttime, it is four times as high. It is the only location with varying encounter rates.

• Psypoke Psydex - Pokémon catch rates

Kanto
Settlements Pallet Town • Viridian City • Pewter City • Cerulean City • Vermilion City • Lavender Town Celadon City • Saffron City • Fuchsia City • Cinnabar Island • Indigo Plateau Routes 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 • 26 • 27 • 28 Landmarks Professor Oak's Laboratory • Viridian Forest • Diglett's Cave • Pewter Museum of Science • Mt. Moon (Square) • Cerulean Cave Underground Path (Kanto Routes 5-6) • Underground Path (Kanto Routes 7-8) • S.S. Anne • S.S. Aqua • Sea Cottage • Rock Tunnel Power Plant • Cycling Road/Pokémon Road • Team Rocket Hideout • Silph Co. • Magnet Train • Pokémon Tower • Safari Zone/Pal Park GO Park • Seafoam Islands • Pokémon Mansion • Cinnabar Lab • Pokémon League Reception Gate • Victory Road • Tohjo Falls Access to Sevii Islands • Johto

This article is part of Project Routes, a Bulbapedia project that aims to write comprehensive articles on every route in the Pokémon world.