This is the second largest rock in the Photographer's Peak area. It has my favorite climbs of the area on it. Four Little Fishies is a great 5.9 face climb, and the 5.3 Conn Route is one of the best 3 pitch beginner's routes imaginable (gear).
Drive to the Photographer's Peak parking area described under the area directions. Aquarium Rock is the second closest rock to the parking. Walk to the left around the base of Photographer's Peak. The next rock is Aquarium, and the first route that you encounter is Four Little Fishies (the bolted route that starts on top of the triangular-shaped detached boulder).
Browse More Classics in Aquarium Rock
Mountain Project's determination of some of the classic, most popular, highest rated routes for Aquarium Rock:
Conn Route 5.3 Trad, 2 pitches, 150 feet
Four Little Fishies 5.9 Sport, 1 pitch, 130 feet
Leaning Jowler 5.11 Trad, Sport, 1 pitch
Featured Route For Aquarium Rock
Four Little Fishies 5.9 SD : Custer State Park : ... : Aquarium Rock
A great straighforward sport route. Follow the trail from the parking area north, it will turn uphill towards the left side of Aquarium Rock. The route starts on the left side of the gully at the base of a slab. Scramble the slab to the first clip. Fire straight up the well-worn face past five or six bolts, followed by a long runout on easy low angle terrain with one horn to sling. A one 60m rappel from the backside. A short downclimb is necessary to reach the rappel bolts....[more] Browse More Classics in SD