Don Edwards San Francisco Bay National Wildlife Refuge: Newark Slough Trail

EASY 13 reviews

Don Edwards San Francisco Bay National Wildlife Refuge: Newark Slough Trail is a 6.5 mile lightly trafficked loop trail located near Fremont, CA that features beautiful wild flowers and is good for all skill levels. The trail offers a number of activity options and is accessible year-round. Dogs are also able to use this trail but must be kept on leash.

6.5 miles 174 feet Loop

dogs on leash

kid friendly

birding

hiking

mountain biking

nature trips

trail running

walking

views

wild flowers

wildlife

The Newark Slough is nice loop around the berms of Don Edwards National Wildlife Refuge. It is a stopover for many migratory birds, so remember to bring your binoculars.

5 months ago

Nice morning trip.

walking
6 months ago

A pleasant, easy loop -- though be prepared for lots of wind and sun. Not crowded even on Memorial Day. Some cool bird life. A good place to get moving -- some cool views though it can be monotonous for stretches. I enjoyed it. Seemed like it would be a great little running or cycling loop. (This entry may be a duplicate with the Don Edwards Wildlife Refuge listing by mistake.) The tiny loop by the pump house is also worth doing -- egrets and cormorants over there.

walking
6 months ago

A pleasant, easy loop -- though be prepared for lots of wind and sun. Not crowded even on Memorial Day. Some cool bird life. A good place to get moving -- some cool views though it can be monotonous for stretches. I enjoyed it. Seemed like it would be a great little running or cycling loop. (My recorded track is under a nearby San Francisco Bay National Wildlife Refuge listing by mistake.) The tiny loop by the pump house is worth doing -- egrets and cormorants over there.

walking
6 months ago

hiking
7 months ago

hiking
9 months ago

hiking
9 months ago

Wonderful sight of nature that's such heart opening! Beautiful weather today too! So close to the bridge and toll plaza and nice learning of marshland and February birds there as well.

10 months ago

Nice flat walking with limited shade. The visitor center is worth a stop.

hiking
1 year ago

It used to look like The previous photo posted.

My son and I like to hike on the Mallard Sough Trail at the Don Edwards wildlife refuge located near Alviso . We have seen a layer of intense green algae like pea soup growing over the salt water pond very rapidly with a sulfuric smell. It has worried me to see snowy Egrets swimming around in it. Also black legged stilts and other rare birds.

683C59D7-0727-499D-AE54-0580625591A7


Photos on the left are from algae on the Mallard Slough trail at Don Edwards refuge.


This was taken on the Lagoon next to the trail called Mallard Slough, not the salt pond on the other side of the trail that has algae . The first photo was taken April 27, 2015. The photo below was taken June 3rd.


No birds !! And drained way down even though it was full of water a week ago. I have never seen it look so desolate . I'm concerned since I did see at least 2 dead birds in the path.


I'm concerned that this is the last of these birds in our salt marshes. Very sad.

Mary Hahn


Sent from my iPhone



In the past this place was beautiful but the beauty has been spoiled by the algae bloom. Possibly an industrial seepage from nearby facilities .

I need to figure out how to post photos for this.

walking
2 years ago

hiking
3 years ago

Surprised to find there are two entrances to the park. One in Fremont the other in Milpitas / Alviso area. Nice place for casual stroll. Small museum currently under construction for renovations. Can be a bit smelly due to salt marshes but there is usually a nice breeze.

hiking
3 years ago

For visitors. Stay at the Aloft hotel across the street and run or hike here. Beautiful place. Too bad the hotel doesn't still offer use of bikes.

hiking
3 years ago

Fantastic- short local hike to do with your family on a weekday evening!