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GP Spa Opens April 25

April 20, 2026 by Heather World

Wellness shots for everyone April 25, when Glen Park’s latest new business The Celtica Wellness Sanctuary celebrates its grand opening in the former Glen Park Dental space at 590 Bosworth!

From 10 a.m. to noon, visitors can scoop up swag, healthy snacks and discounts while touring the new digs and learn about the many treatments that will be offered there, from Swedish massage to mindfulness practice. Meet some of the therapists and swap health tips with District 8 Supervisor Rafael Mandelman, currently the president of the SF Board of Supervisors, who will welcome the new business to the neighborhood.

Founded by Kat Cullen, who boasts Welsh, Scottish and Irish roots, the spa features a waterfall set against a background of slate and wood meant to evoke the natural rugged coastline of West Wales.

“The core of our brand and treatments is water,” Cullen said, citing the Celtic Sea as inspiration.

When she opens, Cullen will have four practitioners on hand who can offer massage and bodywork, including targeted therapeutic deep tissue, Swedish massage, pre- and post-natal massage, sports massage and lymphatic massage. Add-ons include hot stones, skin scrubs and other enhancements. Some of those practitioners will be at the opening

Eventually Cullen hopes to hire a diverse range of practitioners to round out the business with mental health therapy, fitness and mindfulness training. Interested in joining the team? Apply here.

Keep an eye out for workshops around these topics as the business grows.

Cullen has lived in the neighborhood since 2015, but she’s originally from Wales. Her professional background is as diverse as her ancestry, working in web development, tech and local government. In search of a calmer work environment, she trained as a massage therapist in 2023.

“It’s helped me with my own physical ‘age bombs’ as an older parent with three still fairly young boys,” she said. In the course of her new career, she has had the opportunity to treat family members and friends recovering for surgeries and injuries, which has been a real gift, she said.

Tales of epic transformation abound in the ancient mythology of her Celtic ancestors, so perhaps it’s no surprise that Cullen nearly single-handedly shape-shifted the utilitarian former dental office into a peaceful spa, a journey well documented on her Instagram account.

Book appointments and learn more at www.celticawellness.com or when you drop by for the opening.

Filed Under: Businesses

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IMPORTANT UPCOMING DATES

On Site Mural Workshop
Come join us on location to keep designing for the mural. We will combine mural workshop and area workday at Lyell Hill. Come out and play.
WHEN: Sunday, June 7, 11am – 2 pm
WHERE: Lyell Hill at about 436 Bosworth




Planet Bee Tours flyer

Saturday, June 13, 11 a.m. to 1 p.m.
Meet at the GP Library
and walk along Arlington
RSVP here



Arlington Path sign

Work Day on the Arlington Path – Weeds!
Saturday, June 20, 10 a.m. to noon
401 Arlington at Mateo
Coffee, gloves and tools provided


Monthly cleanup on the Greenway
First Saturday of the Month (usually).
Click here to learn more


Friends of Glen Canyon’s
Glen Canyon Habitat Restoration
Every third Saturday 9:30 a.m to noon
Sign up here

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Check It Out at the Glen Park Library

Click the above button or here to see all upcoming Glen Park Branch Library events. Subscribe to the Glen Park Library monthly newsletter to get events highlights in your inbox.

Glen Park Rec Center

Glen Canyon Park sign
Click image above or here to see
the latest Glen Park Rec Center schedule.



Renew Your Glen Park Association Membership for 2026

Join the Glen Park Association and help promote our community’s interests. Together, we can secure improvement funds, publicize neighborhood concerns and strive to speak as one voice on neighborhood and city issues.

Membership in the Glen Park Association is only $10 annually and can be purchased online.

Glen Park Association Advertising Sponsors

Treekeeper SF Ad
JE_Digital Small Space Ad
Diamond Heights Digital Ad
GPA Ad- Perez Construction ad 6.27.22 v Glen Park
moroco
Center for Creative Exploration - child
Bird & Beckett Books drawing
TreeKeeper SF Ad
JE_Digital Small Space Ad
Diamond Heights Digital Ad
GPA Ad- Perez Construction ad 6.27.22 v Glen Park
moroco
Center for Creative Exploration - child
Bird & Beckett Books drawing
TreeKeeper SF Ad
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Glen Park Association is at Glen Park Recreation Center.
4 days ago
Glen Park Association

FREE MOVIE NIGHT at the Glen Park Rec Center, 70 Elk Street. ( indoors)

The first musical to win Best Picture at the Academy Awards in over 30 years, the movie CHICAGO will be showing Tuesday 6PM.
“Chicago won 6 Academy Awards at the 75th Oscars ceremony in 2003”

Fun provided by @jamieennissf
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FREE MOVIE NIGHT at the Glen Park Rec Center, 70 Elk Street. ( indoors)

The first musical to win Best Picture at the Academy Awards in over 30 years, the movie CHICAGO will be showing Tuesday 6PM. 
“Chicago won 6 Academy Awards at the 75th Oscars ceremony in 2003”

Fun provided by @jamieennissf
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Glen Park Association is with Heather World and 2 others in Glen Park.
5 days ago
Glen Park Association

Congratulations to Sunnyside Elementary School for being awarded with a Glen Park Association Community Grant!
With that grant they were able to print a copy of The Ray for every student and staff at Sunnyside. The Ray, the school’s art and literary journal has been in publication for 17+ years.
🎥 This year’s theme is FILM, and students wrote scripts, designed movie posters, and painted Hollywood stars.
⭐️Glen Park Library, 2825 Diamond Street, features STARS made by Kindergarten classes, depicting their own Hollywood Walk of Fame.

See this and other student artwork from The Ray around Glen Park throughout the summer!
Visit @bello.coffee.sf and @thestrandsalon.sf for more art from Sunnyside Elementary!

#sunnysideelementary #glenparksf #art #theray @rafaelmandelmand8 @myrnamelgard7
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Congratulations to Sunnyside Elementary School for being awarded with a Glen Park Association Community Grant! 
With that grant they were able to print a copy of The Ray for every student and staff at Sunnyside. The Ray, the school’s art and literary journal has been in publication for 17+ years. 
🎥 This year’s theme is FILM, and students wrote scripts, designed movie posters, and painted Hollywood stars. 
⭐️Glen Park Library, 2825 Diamond Street, features STARS made by Kindergarten classes, depicting their own Hollywood Walk of Fame.

See this and other student artwork from The Ray around Glen Park throughout the summer!
Visit @bello.coffee.sf and @thestrandsalon.sf for more art from Sunnyside Elementary!

#sunnysideelementary #glenparksf #art #theray @rafaelmandelmand8 @myrnamelgard7
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Blog Roll

Coyote Yipps
Friends of Upper Noe Recreation Center
Glen Park Neighborhoods History Project
Open SF History
Sunnyside Conservatory
Sunnyside History
Sunnyside Neighborhood Association
Tramps of San Francisco
Upper Noe Neighbors

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