San Rafaelito Sea Lion Colony: La Paz's Easy Sea Lion Swim

San Rafaelito is a small rocky islet with a working lighthouse, sitting about 30 to 45 minutes by boat from La Paz and hosting a resident colony of roughly 40 to 140 California sea lions. It is the most accessible sea lion snorkel site in the Bay of La Paz, and from September through May you can legally enter the water with them for a regulated 20-minute encounter. The rest of the year, June through August, swimming is banned during breeding season and boats only observe from a distance.

The site sits inside the Área de Protección de Flora y Fauna Balandra, a federal protected area managed by CONANP, so access rules are stricter than a casual boat stop. That protection is exactly why the sea lions here are so relaxed around snorkelers — generations have grown up without being hunted or harassed.

What to Expect at San Rafaelito

The islet itself is tiny: a volcanic rock crowned by a nine-meter white metal lighthouse, with a shallow reef and coral heads fringing its calmer eastern side. Visibility typically runs 10 to 30 meters, though nutrient-rich bay water can drop it to 3 meters after rain or strong wind. Water temperature swings from about 19–22°C in winter (December–February) to 25–30°C in summer, which is why most operators hand out 3mm shorty wetsuits and sometimes 5mm full suits from December through March.

The sea lions

This is a bachelor and resting colony rather than a breeding colony — the main reproductive group is at Los Islotes, farther north on Espíritu Santo. That matters for your experience: San Rafaelito attracts younger males and juveniles, which are the most curious and playful. Females with pups do haul out here too, and they can be protective, so guides keep snorkelers in the water near the rock's sheltered side and away from the haul-out ledge.

The animals often approach on their own. They circle, spin, and sometimes nibble at fins or snorkels. Touching is prohibited under the reserve's rules, and so is chasing or cornering an animal. On my last visit, the youngest sea lions spent more time investigating our fins than the reef fish did — a detail most briefings underplay.

The reef and marine life

The reef is shallow — 5 to 16 meters — and mild current makes it beginner-friendly. Expect sergeant majors, queen angelfish, Sea of Cortez angelfish, moray eels, octopus, and the occasional sea turtle. Coral is recovering rather than pristine, so set expectations accordingly; this is not the colorful wall diving you find at Cabo Pulmo. The upside is that the sea lions often steal the show within the first 10 minutes.

Season and closures

Swimming with sea lions runs September 1 through May 31. From June 1 to August 31, CONANP closes in-water activity at both Los Islotes and Faro de San Rafaelito during breeding season. Operators substitute extra reef snorkeling or a different site during those months. October through January is my preferred window — colder water, yes, but visibility is exceptional and the colony is at its liveliest.

Planning Your Visit

Getting there and tour options

There is no road access. Every visit is by boat, either on a group tour or a private charter. Most boats leave from Marina de La Paz, the Muelle Fiscal dock, or Pichilingue, and the crossing takes 30 to 45 minutes depending on departure point and sea conditions.

Group tours range from 4 to 8 hours and typically combine San Rafaelito with Balandra Bay. A 4-hour small-group tour with snorkel gear, wetsuit, and ceviche lunch runs around US$95–140 per person; a 6-hour whale shark plus sea lion combo runs about US$245–270 when whale shark season (roughly October to April) overlaps with sea lion season. The Balandra reserve entrance bracelet costs 125–160 MXN per person, and some operators include it while others collect it separately — confirm before booking. Fees are subject to change, so check the official CONANP page for current rates.

A private 40-foot catamaran for up to 12 guests starts around US$900–1,000 for a half-day, which can be cheaper per head than group tours for larger parties.

Rules on the water

Only licensed operators with current permits may run sea lion snorkels. The 20-minute in-water cap is enforced, not a suggestion. Life jackets are required for all snorkelers under most operator policies, and participants should be comfortable swimming in open water. Touch, feed, or block a sea lion's path and the guide will pull the group out.

Who can go

Minimum ages vary by operator: 8 years on cruise-line excursions, 5 on some family tours, and as young as 3 with parental supervision on private charters. Pregnant travelers and anyone with back, neck, or knee problems are usually excluded from snorkeling. Travelers with limited swimming ability can stay on the boat or use a life jacket and hold a guide's hand.

Frequently Asked Questions

Is San Rafaelito better than Los Islotes for sea lion snorkeling?

Los Islotes has more sea lions (600-plus), better visibility, and a more colorful reef. San Rafaelito wins on convenience: it is closer to La Paz, cheaper to reach, and far less crowded — sometimes you get the islet to yourself early in the morning. Choose Los Islotes for the classic experience, San Rafaelito if you are short on time or traveling with young kids.

When is swimming with the sea lions closed?

In-water encounters are prohibited from June 1 to August 31 each year during breeding season. Boats still visit and you can observe from the deck, but you cannot enter the water near the colony.

How much does a San Rafaelito tour cost?

Group tours run roughly US$95–140 per person for 4 to 6 hours, usually including gear and lunch. The Balandra protected-area bracelet (125–160 MXN) may be separate. Private charters start near US$900 for a half-day boat.

Can I visit San Rafaelito without a tour?

No. There is no public dock, no regular ferry, and anchoring or landing on the islet is restricted. All access is through licensed boat operators departing from La Paz or Pichilingue.