Easy and flat trail. Once you park, just follow the trail along the fence. As others have stated... no shade along the entire trail. Good walk, but not too exciting. Grab a beer at Mare Island Brewery when youre done!

It was awesome! No one else around at 3pm on a Monday.

Nice long trail along the shoreline with big open views truly a great scenery to undwind or go for a nice jog!

Great views of bay and wildlife. Wide open trail I liked as chance of getting ticks from hike greatly reduced.

Ticks and snakes. Leave the doggo at home. Its about 3.5 miles round trip from the car park to trail end. Nice views of San Pablo Bay. No bikes. Part of the trail is beside a former landfill that has been cleaned up, capped and monitored.

Beautiful and peaceful walk or thinking place.

Gravel Trail that walks towards the water with historical military and current nature facts. There are benches that you can sit and enjoy the view looking out on the water and the hills on the other side. Not many people only saw two making it beautiful quite and a good walk! My father and I went and even though we stayed on the trail getting slightly close to the grass while sitting on the benches we both came home with four ticks total. If the trail was a bit more groomed it would be a 5 Star Adventure!

Robert Jensen review is correct but its one of the few places in that city kept up on keeping the slum attitude of dumping for others to care of have not taken over in vallahole.Ive seen maybe 5 varieties of birds of prey, turkeys are now common as everywhere, coyotes, and waterfowl thrive. Its a fortunate save for the area that people can walk daily.The rest of the end of the island should be opened yet short term gain is expected by the present mayor in relationship to developing more living spaces for higher achievers, which Vallejo energy is depressive and trashed by its own dwellers. I can see where gentrification would uplift the face of the classic victorians of the place before they are ground down to no value dust. But these people also appreciate open space to walk job and breath.

Didnt see another soul out while walking. A short hike with a nice view of the water. Some interesting military historical significance to the area as well.

It is prettyish, but stay on the trail... There are ticks. Like a LOT of ticks.

Chill and has a great sunset! IG @beardcharisma

Not crowded, nice run

Cool..lot of ticks

Just okay, not much to see, and too many suspicious characters hanging out in their cars just waiting for an opportunity to break into someones car, also where are the restrooms for the public? There arent any!

Nice trail for a run or hike

Looks lovely but i couldnt walk my dog there so didnt get to experience it

A beautiful, quiet space near the Bay. Please help keep it safe and litter free.

Cool views of the bay and lots of cool bird life. Definitely a bit strange to have essentially a toxic hill in the center of the trail loop but it beats walking or running on the roads. Also it is listed as no bike but there is no apparent reason for that. The trail is road width and smooth enough to ride a road bike on.

Another amazing walking/hiking area. So many different places to check out. Have to go back and check out another trail next time...

Not a safe spot to park your car break-ins are frequent

This is an easy 3mile loop with lots of birds and good views of My. Tam to the west as well as My. Diablo. If you like a bit more of an up hill hike try the preserve also on Mare island.

Great views of the hills and surrounding area. Definately an easy walk; good for families, children, elderly, etc. Would definately reccomend for an easy sunday out with family, friends, or loved ones. Plenty of wildlife too, lots of birds and other small critters.

Several people mentioned they brought their dogs here so I came out but theres a big NO DOGS sign on the fence so that was disappointing.

Beautiful place to run!!

I had a good time

Nice place to have fun

Shhhh

Wonderful path and scenery of the North San Francisco Bay.

You should definitely do this thats a nice View

Serenity

Great view of the Bay!

Great way to relax and walk