Mariner Wellness Institute, Inc.
Make room for deeper self-discovery
Mariner Wellness Institute brings human development and holistic life coaching into programs for individuals, couples and groups, with retreats designed to make room for self-discovery and well-being. Its 2026 gathering takes that work far beyond the San Diego address, to Holos Basecamp in Costa Rica’s Diamante Valley. The setting is unusually vivid: 200 acres of protected jungle, paths through forest and stone, and seven waterfalls, with views toward Diamante Falls. Guests stay in glamping tents, with a temple space for group work and reflection. The retreat runs October 4 to 11, with shared shuttle transport arranged from a hotel near San José airport. Its stated focus is heart-led inquiry and personal development rather than a named meditation lineage. The institute runs by donation, so ask what a contribution covers before reserving.
Highlights
- A 200-acre protected jungle setting at Holos Basecamp
- Seven waterfalls on the Costa Rica retreat grounds
- Glamping tents paired with a dedicated temple space
- Programs and retreats for individuals, couples and groups
Good for
Setting
The institute is based in San Diego, while its 2026 retreat takes place in Costa Rica’s Diamante Valley. Holos Basecamp spans protected jungle, with forest-and-stone paths, seven waterfalls and views toward Diamante Falls. A temple space provides a setting for group gatherings and reflection.
A typical day
Daily structure varies by retreat, and a detailed timetable is not published. The 2026 gathering centers on heart-led inquiry and personal development, with the temple space and surrounding landscape forming part of the retreat setting. Confirm session times and the balance of group activities and personal time with the institute.
Accommodation
For the October 2026 retreat, guests stay in glamping tents at Holos Basecamp. Ask the institute about lodging for other programs.
What to bring
Bring comfortable walking shoes for forest and stone paths, plus light layers for changing outdoor conditions. The annual average temperature is 16.8°C; the wettest months are February, March and November, so a light rain layer may be useful then.
How to get there
For the October 2026 retreat, fly to Juan Santamaría International Airport (SJO) near San José and go to the shuttle pickup at Fairfield by Marriott San Jose Airport Alajuela. The shared ride to Holos Basecamp takes about 3.5 hours; it departs on October 4, with return transport on October 11.
Nearest airport: McClellan-Palomar Airport (CLD) (3 km)
McClellan-Palomar Airport (CLD), near Carlsbad, is approximately 3 km from the institute’s San Diego address. The Costa Rica retreat uses a separate shared shuttle from Fairfield by Marriott San Jose Airport Alajuela.
Nearest city: Carlsbad
Contact Mariner Wellness Institute directly to ask about registration and availability.
The institute runs by donation, with no fixed fee stated. Ask what contribution is expected and what it includes for your chosen program.
Climate
Climate Zone: Temperate
Best Months: Jul, Aug, May
Avoid: Mar, Nov, Feb
The annual average temperature is 16.8°C, with warmer conditions in July, August and September and cooler weather in January, February and March. February, March and November are the wettest months, while May through August are generally driest.
Location
Frequently asked questions
How long is the 2026 Costa Rica retreat?
The retreat is scheduled for October 4 to 11, 2026. Confirm the dates with the institute before making travel plans.
Can beginners attend?
The institute serves individuals, couples and groups, but specific experience requirements for each retreat are not stated. Ask the host whether a particular program suits your needs.
How do I get to the Costa Rica retreat?
A shared shuttle is arranged from Fairfield by Marriott San Jose Airport Alajuela on the morning of October 4, with return transport on the afternoon of October 11. The drive to Holos Basecamp takes about 3.5 hours.
What food and dietary options are available?
Dietary options listed include vegan, vegetarian, pescetarian, Ayurvedic, gluten-free, dairy-free and nut-free meals, among others. Confirm the menu and what is included for your retreat with the institute.
How can I reserve a place?
Contact Mariner Wellness Institute directly to ask about registration and availability.
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