Review Date
October 13, 2008

Overall Rating
 5 of 5

Aerobic Difficulty
 4 of 5

Technical Difficulty
 5 of 5

Ridden Trail:
Once a week

Reviewed by: CaliforniaNicco ,  Downhiller

Summary:
This is the best place for everthing from XC to MAJOR DH!

Chaparrel - I don't see why ppl are saying its a hiking trail - THIS IS A MAJOR DH TRAIL-from the begging jumps and railroad ties-to the 1ft ruts and skippy logs at the end!

Cinderella - VERY RISKY - lots and lots of 3 ft, flat landing jumps. Couple of 3 ft. railroad tie drops at the end with ruts EVERYWHERE!

All of the fun at JMP starts at the top - park across from Chabot Space and Science Center.

There's even some freeriding around JMP-6ft. stump drop, and a 4 ft. picnic area drop- I'll link pictures soon!

I'm not going to say where all the freeriding is - look for yourself, the city can't find 'em.

Downside: JMP is under the control of the City of Oakland-they can close and open the park whenever they want!

They are known for closing the park for no apparent reason-concerts, "fire danger", other things.

There is very little climbing! A ride a heavy DH bike and do fine.

Recommended Route:
Park at top, ride down Cinderella or Chaparell. - ride left through meadow- take left and ride back up!

Other recommended trails in the same area:
Redwood State- go up from meadow-do the loop counter clockwise from there!

Review Date
October 4, 2008

Overall Rating
 3 of 5

Aerobic Difficulty
 3 of 5

Technical Difficulty
 4 of 5

Ridden Trail:
Every few months

Reviewed by: s1lv3rsc00by ,  Cross Country Rider

Summary:
Only 3 trails worth riding down:

Cinderella - Technical with rocks, roots, and jumps. Not too steep, but fast singletrack downhill run. This is the best trail at JMP.

Chaparral - Somewhat technical and mildly steep in some areas. It's basically like a hiker trail with log steps and some rocky sections.

Lower Sunset Loop trail - it runs parallel between the Sinawik Trail, the creek, and Sunset Trail. This is basically rolling singletrack that hugs the creek side. It flows fast and nice. But then you hit the Palo Colorados Trail which is closed to mtb's and have to climb the Sinawik Trail to get out.

All the other trails I saw seemed to be too short short, double track, fireroads, not technical or steep, or just plain closed to mtb.

Recommended Route:
Shuttle to top. Ride down Cinderella to Sunset to Sunset Loop, then up Sinawilk to the ranger station. Shuttle back up and repeat.

Review Date
March 6, 2008

Overall Rating
 4 of 5

Aerobic Difficulty
 3 of 5

Technical Difficulty
 4 of 5

Ridden Trail:
Every few months

Reviewed by: bstyle74 ,  Cross Country Rider

Summary:
Smallish park that you will want to do over and over and over again. DH sections are awesome, and the climbs aren't hellish. You can shuttle if you have a huge bike. Trails, especially cinderella, can get very overgrown but its a blast.

Watch out for joggers, hikers, and dogs. Very heavy uphill usage, and confrontations are relatively common. Use common courtesy and stay in control.

Recommended Route:
Ride down Big Trees, Cinderella, and Chapperelle.

Review Date
February 24, 2008

Overall Rating
 5 of 5

Aerobic Difficulty
 4 of 5

Technical Difficulty
 5 of 5

Ridden Trail:
Once a week

Reviewed by: poff ,  Cross Country Rider

Summary:
I once was on the "All JMP trails" ride - something like 18 mi and 4K ft of climbing. So, "trails are flat" is just complete BS. This is technical enough and Castlerock is doable on HT (I saw it with my eyes). I love this little park. You will find plenty of challenge - for starters do not use your brakes going down Bishops Walk.

Recommended Route:
Try them all

Other recommended trails in the same area:
Redwood, Chabot.

Review Date
August 22, 2007

Overall Rating
 5 of 5

Aerobic Difficulty
 3 of 5

Technical Difficulty
 3 of 5

Ridden Trail:
Once a week

Reviewed by: freeride53 ,  Downhiller

Summary:
this trail is sweet
great for people in the east bay
im in alameda and its conveniant

Recommended Route:
take high street, and redwood road, then jaquiun miller up ta skyline.
past mills
and there you are

Other recommended trails in the same area:
cinderella/surrounding parks/entrances to the area in and arond skyline blvd.

watch out for the hikers at first

great place.