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This space is devoted to sharing information about Point Reyes and the surrounding areas. Find information about the local plants, wildlife, the hiking/biking trails around Point Reyes National Seashore, tales of our recent outings and explorations, wildlife encounters & sightings, and other exciting happenings in the natural world.
Showing posts with label Drakes Estero. Show all posts
Showing posts with label Drakes Estero. Show all posts

Thursday, February 17, 2011

Drakes Estero Trail to Sunset Beach Hike

Details: about 9 miles round trip, approximately 4 hrs with photo stops and a lunch break. This trail is a hiking and biking trail. Note: As of 1/26/11 impassable on a bike after 2 miles, read on for details.

Getting out of the car at the Estero Trail parking lot, was enough movement to necessitate removing a layer. The sun was shining and the bright blue skies were filled with wispy and playful clouds stretching the horizon.
All rights reserved. Photo by Tressa Bronner 2011.
The first mile or so meanders through a thick pine stand. We welcomed the shady start to our hike as we were overdressed for this beautiful day. Amongst the trees we found several groupings of mushrooms poking out from beneath the duff. Once out of the pine stand, we reach the bridge across Home Bay. I have often stood on the bridge and watched countless leopard sharks swim beneath, in and out of the shallow feeding area past the bridge. But not today, the tide was out and only a small channel of water remained in the labyrinth that was the exposed mud of Home Bay. I stood and looked into the water reflecting the clouds and marveled, but not at sharks.
Looking Southwest into Home Bay from Bridge
All rights reserved. Photo By Tressa Bronner 2011
After the bridge, the trail proceeds uphill with views overlooking the estero. Bring your binoculars along as you are often within range to check out shorebirds and rafts of migrating water fowl. After about 3/4 of a mile, the trail got a bit tricky. Cows graze in the area and at some points it seems as if you are just following a cow trail, not an actual park trail. As we descended a shaded hill the wet mud had been trudged by cows and all that remained was a 4 inch wide bridge that was solid enough to support the weight of an adult. This bridge often shifted, as it was the residual non-path of the cows, so hopping back and forth between bridges was necessary to avoid the muddy hoof holes filled with puddles. This left us wondering how one would pass when the bridges were trampled. The trail continued in this way for quite some time: dry sections, muddy sections, followed by muddy almost impassable sections that left me wishing for rain boots but wondering about the bike tire tread tracks I saw, followed by dry sections. I enjoyed the challenge, but this trail is not suitable for all abilities nor bikes at this not-quite-dry time.
Lone Eucalyptus.
All rights reserved. Photo by Tressa Bronner 2011.
We decided on the trail out to Sunset Beach, the shorter of the two options, since we had a time restraint.  If you stay on the main path, you can continue on to Drakes Head and beyond.  The trail out to the beach has lovely views and a couple of fresh water ponds. We stopped at the bench for a picnic in the sunshine. There is also a trail that continues on, but since we weren't there for the sunset, we opted not to get out feet wet. Walking past the large sandbar we stopped to watch the harbor seals catching rays on their temporary beach. About thirty seals were gathered, stretched out, enjoying the balmy weather.

Turning around we received flyovers by two flocks of American White Pelicans that were roaming the estero. At one point they circled around us three times before finally coming in for a landing on a fresh water pond. What a treat to hear their wing flaps and watch their splash landing into the pond.
Estero Trail Overlook
All rights reserved. Photo by Tressa Bronner 2011.
All in all, a lovely day, gorgeous scenery, solitude, just a bit sloshy at points. This bike/hike will be much easier in summer and fall once dried out. I would say kayaking is the best way to explore the estero during these lovely winter days, as long as you check the tide first. Mud in your boots, while not fun, is much easier than a mud flat to cross in your kayak. Get out there soon! The estero closes annually to kayakers for harbor seal protection on March 1st until June 30th.

Friday, June 18, 2010

Bat Rays in Drakes Estero and Tomales Bay

Bat Ray. Photo by Linda Thomas. 2005
Bat rays are commonly seen in our shallow waters of Tomales Bay and Drakes Estero. Kayaking along, often you will see the tips of their grayish-brown fins flapping just above the surface of the water as they meander through the eelgrass beds. The Bat Rays we find in Tomales Bay are a type of Eagle Ray and you may have heard someone refer to a “bat ray” as an “eagle ray”. Bat rays are sometimes sought after by fisherman for there edible meat. In some areas around the world rays have been overharvested and beaches filled with their remains lie as a daunting reminder to any species fragility.

 Ray Skeletons, Baja California Sur, Mexico. Photo by Tressa Bronner. 2007
Bat rays were eating oysters being farmed in the bay for human consumption, but they weren't the only marine animal looking for a meal.  There was a push by farmers to reduce the predation of their farmed oysters by the rays. With the reduction of bat rays and continued predation of their oysters it was discovered that the rays were actually feeding on crabs that were feeding on their oysters. 
These creatures are fun to watch and it is magical when they swim underneath your kayak.
Kayaking Drakes Estero. Photo by Tressa Bronner. 2009
The Facts:

Size: At birth, these rays are around 8 inches across and are born with their tail wrapped around themselves to protect the mother from the barb on their tail while giving birth. Rays grow steadily until hitting maturity, at which time growing slows. Females are larger than males, ranging 40-70 inches across at maturity. Males range from 23-40 inches across at maturity.

Diet: Bat Rays use ther "wings" to hunt for food. Flapping their pectoral fins in the sand, they expose buried prey, such as clams. Rays also use their lobelike snouts to dig prey from sandy bottoms.

Bat Ray Photo by Linda Thomas. 2005
Reproduction: Males typically live up to six years. Females live longer, up to 25 years of age. In May-July, 2-10 pups are live born after a ten to twelve month gestation period. During mating season, June and July, the rays can be seen in Drakes Estero and near the oyster beds north of Hog Island in Tomales Bay. The rays move into the estero for birthing just as the harbor seals are wrapping up their birthing season.

Range: Bat rays move into open coastal waters as water temperatures drop below 50 degrees F and head for warmer water. They are often seen schooling with smoothhound sharks and leopard sharks as they travel.

Predators: Bat rays are eaten by Great White Sharks, Seven gill sharks, and occasionally by sea lions and humans.

Stay tuned for our next blog about creatures we have been seeing while on the water, leopard sharks.

*Linda Thomas has more photos available for viewing . Check out her ac4it's Flickr page.