Details

Activities
- Mountain Bike
- Dirtbike
- ATV/ORV/OHV
Riding Area

Guam International Raceway
Guam, Armed Forces Pacific
Difficulty Rating

Blue rate
Trail Type

Mixed
Bike Type

DH, XC
Trail Usage

Multi-use
Direction

One Direction
Climb Difficulty

Green
Physical Rating

Moderate
Trail Visibility

Sometimes hard to follow
Dogs Allowed

Yes
Ride in Rain

Yes
Local Popularity
65 in Mountain Biking [+]
- 5 in Dirtbiking
- 5 in ATVing/Offroading

The great thing about this trail is it is rideable year-round. Most of the remaining MTB trails on the island are unrideable during the rainy season due to the abundance of red dirt/clay surface that turns to thick, rust-colored mud that clogs up the rear triangles on your frame preventing the tires from clearing. There is a beautiful photo viewpoint of the eastern coastal area - perfect to take selfies and to take a breather

The trail starts out on part of the off-road track. It is shared with an ATV tour vendor that is a tenant at the raceway. As such, bikers have to follow the trail in the same direction that the ATV tours go - counter clockwise.

After the first climb, then there is a fast descent with a couple of nice bumps to get some air. Then you take a side doubletrack trail that takes you onto the jungle-covered jeep trail. It's rocky, but not technical, and includes a couple of nice rollers. There is one short punchy climb after which you have a choice of an A-line (for riders with a bit more bike handling skills), and the B-line (easier but takes a longer route) that drops into a nice quarry.

Some nice singletrack follow and then you loop back to the start.

All the doubletrack on this trail is a shared with an ATV tour operator. The singletrack is only for bikes. The whole park is primarily for motorized sports (moto-x, off-road races) and there is a go-kart track and quarter-mile drag strip on the west side of the park. Plenty of parking.

Access Info Restricted Access

Currently, only members of the Guam Cycling Federation, Guam Motorcross Association, and Guam Racing Federation are allowed on the trails. An annual membership for the Guam Cycling Federation is $60 and can be done online at guamcycling.com. Hours of operation are 8am - 530pm, Tues/Thu/Fri/Sat/Sun.

Traditionally Indigenous Territory

Chamorro/CHamoru

More Stats for Guam Raceway Park (GRP) Loop bike trail trail

Altitude change

-2 ft
Altitude min

488 ft
Altitude max

555 ft
Altitude start

531 ft
Altitude end

528 ft
Grade max

-12.3%
Grade min

9.8%
Distance climb

1 mile
Distance down

1 mile
Distance flat

4,934 ft
Avg time

00:43:22
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The intended direction a trail should be ridden.

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