On the first pitch the crux might be near the ground. The 2nd pitch is seldom done but has a few harder spots.
Mark Maffe discovered the first pitch of Groove Tube in 1995. It was buried beneath jungle growth and he cleaned it, added protection and gave the rating 5.10 (even though it was a very soft rating - he was worried that no one would climb it if he rated it lower, especially given the already soft ratings in that area - and he really wanted people to climb it since it's such a fun climb). FA info in King's original guidebook was a misprint.
Location
Once you've pulled yourself up the fixed ropes: Walk to the right on the very eroded hill. You can't miss this one, the TUBE!!!
Protection
Draws. I seem to remember something about 2 ropes, but now I'm not sure about that. 2nd pitch might be a long one.
By caughtinside From: Point Richmond, CA Mar 3, 2007
This is a really fun and unique climb! A couple of things: it's really probably only 5.8, and it gets a big line! both times we walked by fire wall, there were at least 3 parties waiting to get on this thing! It's good, but I wouldn't say it's worth waiting more than 10 minutes for. Lots of hype on this one...
The second pitch is fairly short and arches to the left. It goes ~5.10. Be warned that a 60m will NOT get you (rappel) down to the ground. There is a set of bolts 100 ft above ground you can rap off of that's somewhat below the 2nd pitch, but please back up the rap as you might swing trying to reach it.
By susan peplow From: what day is this? Oct 19, 2007
I believe the first pitch has as many as 11 slings on it. To me, it's a classic and worth waiting for and I thought it was unique. Then again......we didn't have to wait.
~Susan
By Livia From: Colorado Springs, CO Jan 18, 2008 rating: 5.10-
I think some of the variability in ratings for this climb has to do with the polished rock combined with the heat and humidity. On a cool(ish), dry(ish) day, this would feel 5.8. On a hot, humid (read--normal) day, this feels like climbing on butter (damp hands combined with chalk) spread on glass and feels more low 5.10. That said, I had a blast. For those that really enjoy climbing unique features on a non-contrived route, this is your climb.