Nestled among the rolling green hills of Sonoma County, Osmosis Day Spa Sanctuary offers a peaceful retreat where guests can relax and reconnect with nature. Our five-acre creekside property features a serene Japanese meditation garden and secluded forest pagodas, creating a tranquil setting for reflection and renewal. Osmosis is a beautiful 20 min drive from the Inn.

At the heart of Osmosis are three signature services:

• The renowned Cedar Enzyme Bath, a therapeutic treatment that relieves pain and tension while deeply cleansing and exfoliating the skin. This warm, detoxifying bath rejuvenates both body and mind. 
• Our Therapeutic Massage Therapy, performed by highly trained therapists who work intuitively to address each guest’s individual needs, offering both relaxation and healing.
• Custom Facial Treatments using organic and sustainable skincare lines that are highly effective at addressing a wide variety of skin concerns, paired with the skill of our estheticians to deliver glowing results in a meditative environment. 

Whether you’re seeking relaxation, healing, or a moment of reflection, Osmosis offers an unforgettable sanctuary for wellness, wrapped in the calming embrace of nature. We welcome single guests, as well as couples, friends and groups of all kinds. 

Osmosis offers a special 10% discount on midweek services to guests staying at the Inn on the Russian River. 

Book your stay and add the Osmosis SPA treatment: 707-865-1143.

Our Stay and Play Package will save you money on your round of golf at the famous Northwood Golf Course designed by Alister MacKenzie when you book directly with us!

Northwood Golf Club is a beautiful 9 hole golf course in Monte Rio, California. Recently, Northwood has been ranked one of the top 9 hole golf courses in the nation by Golf World Magazine. With an unbeatable location just off the Russian River, Northwood is a vacation in the redwoods. Each hole is surrounded by 150+ foot redwoods, giving the player a true sense of escape. If you are looking for a relaxing 9 hole experience, Northwood Golf Course is worth the drive to Monte Rio!

For only $75, this exclusive package includes 2 people, 18 holes, and a golf cart. 

Save nearly 50% when you book your stay and round of golf with us!

Valid for stays midweek (Monday-Thursday). Room rates vary. 

Call for availability 707-865-1143.

Ashley was the first to admire our brand-new dock—now it’s your turn!

Step into serenity with direct access to the beautiful Russian River. Whether you rent a kayak or canoe next door or bring your own, our private dock is the perfect launch point for adventure. 

Or simply sit back, dip your toes in the water, and watch the otters play.

It’s peaceful, it’s beautiful—it’s the perfect place to let your cares drift away.

Please note that our dock is seasonal and is installed sometime in May and is removed sometime in October, all dependent on water levels. Call us for the most accurate information: 707-865-1143