Carpinteria Salt Marsh Nature Park

This 230-acre reserve is one of the only places left where the land meets the ocean, providing an essential environment for numerous plants and wildlife. The Carpinteria Salt Marsh is one of the largest and most ecologically important coastal estuaries in California. Over 35 species of fish have been reported from the marsh, including the Leopard Shark, Diamond Turbot and the Longjaw Mudsucker. Waterfowl such as the Snowy Egret, Osprey and Horned Grebe also make use of this habitat. Level walking trails allow people to easily visit and learn about the coastal environment.

http://www.carpinteriacoast.com/salt_marsh.html

Hot Sulphur Springs

My first Hairflipp!
Getting Poison Oak was worth it.

Natural aqua blue hot springs in a beautiful canyon less than a mile off U.S. Highway 101 at Lompoc Exit (North Santa Barbara County). A short trail takes you to this sulphur hot springs which provides a great soak while lush vegetation makes you feel like you’re in a jungle. The Palm tree at water's edge was supposedly planted by Jim Morrison of the Doors. Truth or Fiction? You decide. Beware of poison oak along the trail. Water temperature can be near 90 degrees but varies with the season. The spring is only open during daylight hours as the parking lot closes at dusk.

Read more at Trails.com: Gaviota State Park (Las Cruces) Hot Spring