What are the hours and season for Posada Don Diego?

Posada Don Diego is open Year-round. Check-in: Flexible. Check-out: Flexible.

What are the fire rules at Posada Don Diego?

Fire rules at Posada Don Diego: Open campfires in designated areas only. Fire risk is high in the chaparral. Always check with staff on current conditions. Propane permitted.

What is the best time to visit Posada Don Diego?

Oct–Apr: Coolest and clearest nights. Best stargazing. Comfortable days. Jul–Aug: Monsoon season brings lightning storms that are spectacular from this elevation. Not for everyone.

What are the best things to do near Posada Don Diego?

Near Posada Don Diego: OAN day trip to the Sierra San Pedro Mártir summit — see both oceans simultaneously. Milky Way photography after 10pm — zero light pollution, 2,600ft elevation, exceptional clarity. Valle de Trinidad town 5 km — small Mexican working town with a great taqueria.

Is there wildlife at Posada Don Diego?

Wildlife alert for Posada Don Diego: Rattlesnakes are present throughout the high desert chaparral — most active spring and fall. Watch where you step at night. Mule deer and golden eagles are common in the sierra above camp.

What are the common problems at Posada Don Diego?

At Posada Don Diego: Very basic facilities — limited supplies on-site. Solution: Stock up completely in Ensenada before this stop. The valle has a small town (Valle de Trinidad) 5 km away with basic supplies.

What are the insider tips for Posada Don Diego?

Insider tips for Posada Don Diego: Arrive at Don Diego’s in the afternoon, rest, and then drive to the OAN early the next morning — the road is easier in daylight Check moon phase before arrival — new moon weeks give the best stargazing. Full moon washes out the Milky Way. The small taqueria in Valle de Trinidad town is excellent — birria and carnitas tacos for under $2 each

What makes Posada Don Diego unique?

The Observatorio Astronómico Nacional (OAN) day trip — a 30 km drive up a spectacular mountain road to 9,000 feet on top of the Sierra San Pedro Mártir. You’ll see the Pacific Ocean and the Sea of Cortez simultaneously from the summit. The observatory has multiple large telescopes and staff are occasionally willing to show visitors around. The drive itself is one of the great Baja experiences.

Posada Don Diego

✓ Sites Available

The essential Baja Hwy 3 stop — cold beer, full hookups, and stargazing at 2,600 ft

Valle de Trinidad, Baja California, Mexico4.4 (203)2,625 ft

Share: X Facebook

Cell signal:

Posada Don Diego is the most famous campground stop on Baja’s Highway 3, the route connecting Ensenada to San Felipe through the Valle de Trinidad. Operating since the 1970s, it’s a mandatory overnight for Baja road-trippers. Cold Tecate, full hookups, and a warm desert night sky at 2,600 feet. Around 30 sites in a high-desert valley surrounded by chaparral and granite boulders. The National Astronomical Observatory of Mexico (OAN) is accessible on a day trip into the Sierra San Pedro Mártir.

Things to do nearby

Observatorio Astronómico NacionalSierra San Pedro Mártir National ParkSan FelipeOAN day trip to the Sierra San Pedro Mártir s

Best For

Baja road-trippersStargazersOverlandersLong-haul RVersAstronomers

Site Types

RVTent

Amenities

~30 sites

Full hookups 30A

Dry camping

Hot showers

Flush toilets

Cold drinks / small store

High desert stargazing

Pet friendly

Pull-through sites

Check-in

Flexible

Check-out

Flexible

Season

Year-round

Max/site

6 people

Known Issues

Very basic facilities. Cash only. Limited supplies — bring food and water. Cell service unreliable (Telcel only). Dusty in dry season.

Cancellation Policy

First come, first served or call ahead. Cash only.

Why campers love Posada Don Diego

Posada Don Diego is mandatory on any Ensenada-to-San Felipe drive and has been since the 1970s. At 2,600 feet in the high desert, the night sky is genuinely extraordinary — zero light pollution, Milky Way visible with the naked eye on most nights, and the Sierra San Pedro Mártir rising dramatically to the south (home to one of North America’s premier astronomical observatories). The combination of cold beer, $15–20 hookup sites, and star fields overhead is why every Baja road-tripper stops here at least once.

What's new in 2026

2026: Basic Starlink antenna now operational for guests (limited bandwidth). New propane resupply available on-site.

What campers say about Posada Don Diego

"We pulled in for one night and stayed three. The stars alone justified it. Milky Way from horizon to horizon. No words."

— iRV2 Forum 2025

"Cold Tecate and a Milky Way sky after a long desert drive. Don Diego’s is exactly what it’s supposed to be and nothing more."

— Campendium 2025

"Day trip to the OAN observatory is extraordinary — dramatic mountain road, views across the whole peninsula, and actual working telescopes you can ask about."

— The Dyrt 2025

Not the right fit if…

✕You need reliable cell service
✕You want full amenities or on-site food beyond a small store

Frequently asked questions

How much does Posada Don Diego cost per night?+

Posada Don Diego costs $15–$25 per night depending on site type and season. Hookup options: 30A electric + water. Dump available.

What season is Posada Don Diego open?+

Posada Don Diego is open Year-round. Check-in is Flexible, check-out is Flexible.

Does Posada Don Diego have hookups?+

30A electric + water. Dump available.

What is the maximum RV length at Posada Don Diego?+

Posada Don Diego can accommodate RVs up to 50 feet long.

How do I make reservations at Posada Don Diego?+

Book Posada Don Diego directly at camperwatch.org/book/posada-don-diego-valle-trinidad. No booking fees. Select your dates and site type and pay online.

Are pets allowed at Posada Don Diego?+

Posada Don Diego is pet friendly. Pets must be kept on leash.

What is the cell service like at Posada Don Diego?+

Telcel only, patchy. No US carrier signal reliably. Plan for offline navigation.

How far is Posada Don Diego from the nearest town?+

Nearest services: Valle de Trinidad town — 5 km. Limited supplies.