What Is OMSI in Portland? | Science, Submarines And Space

OMSI is Portland’s hands-on science museum, with interactive halls, labs, a planetarium, a theater, and the USS Blueback submarine.

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For travelers wondering what OMSI is in Portland, the useful answer is bigger than “a science museum.” The Oregon Museum of Science and Industry is a large, activity-led attraction on the east bank of the Willamette River, where visitors can run experiments, study fossils, watch dome shows, see giant-screen films, and tour a retired U.S. Navy submarine.

OMSI works especially well for families, rainy days, science-minded adults, and anyone who prefers touching, testing, and building to quietly viewing display cases. A basic visit can fill two to three hours, while a planetarium show or submarine tour can turn it into a half-day stop.

OMSI In Portland: What Visitors Find Inside

OMSI stands for the Oregon Museum of Science and Industry. The museum combines permanent exhibit halls, staffed laboratories, rotating exhibitions, live programs, a domed planetarium, a movie theater, and the USS Blueback submarine at one riverfront campus.

The main building sits at 1945 SE Water Avenue, just south of downtown Portland across the river. OMSI began in 1944 and now operates as both a public museum and a regional science-education organization, with camps, school programs, traveling exhibitions, and community events beyond the Portland campus.

The tone is practical rather than formal. Visitors are encouraged to press controls, test designs, inspect specimens, ask lab staff questions, and repeat activities until the science makes sense.

Tickets, Hours And Extra Costs

OMSI’s current general-admission prices are $22.50 for adults age 14 and older, $20.50 for seniors age 63 and older, $15.50 for children age 3 through 13, and free for children under 3. Tickets are still required for every age, and planetarium shows, submarine tours, films, and featured exhibitions can add to the total.

For summer 2026, the museum lists hours of 9:30 a.m. to 5:30 p.m. Monday through Friday and Sunday, with Saturday hours from 9:30 a.m. to 7 p.m. The schedule can change for school breaks, holidays, and special events, so confirm the date and any add-on times on the official OMSI visitor page.

Current featured exhibition: TITANIC: The Artifact Exhibition is scheduled through October 18, 2026, with a combined museum-and-exhibit ticket rather than standard admission alone.

Choose entry and any timed extras together before arrival so the show or submarine slot fits the rest of the visit. Current ticket options can be checked here:

What You Can Do At OMSI

General admission covers the main halls and many hands-on labs, while the planetarium, submarine, theater, and featured exhibitions may need separate tickets. The mix changes through the year, so the visit can feel different on a return trip.

Where To Stay Near OMSI

OMSI does not require staying beside the museum because downtown Portland and the inner east side are both close. The Central Eastside suits visitors who want short transit or bike access, while downtown works well for a broader first-time Portland itinerary.

Use the map to compare Portland hotels against OMSI, downtown sights, and the transit lines you plan to use:

How Long Do You Need At OMSI?

Most first-time visitors should allow three to four hours for OMSI, especially with children. Two hours can cover selected halls, while four to five hours gives enough room for the labs plus one ticketed activity without rushing.

• About two hours: Pick the Natural Sciences Hall, Turbine Hall, and one lab.
• Three to four hours: See the main halls, pause for lunch, and add a planetarium show or film.
• Half a day: Combine the museum with the USS Blueback or a featured exhibition.

The submarine’s standard tour lasts about 45 minutes and runs in a confined historic vessel. Visitors must be at least age 3 and 36 inches tall, and they need to climb through a small watertight doorway and manage steep stairs without being carried.

Getting There And Accessibility

OMSI is easy to reach by public transit, bicycle, or car from central Portland. The OMSI/SE Water Avenue transit stop connects with MAX, bus, and Portland Streetcar service, while Tilikum Crossing gives cyclists and pedestrians a direct river crossing near the museum.

Museum parking currently costs $5 plus fees for two hours, $8 plus fees for the day, or $2 plus fees after 5 p.m. Payment is available through Parking Kitty or on-site kiosks, and overnight parking is not allowed.

All main exhibit halls and labs are wheelchair or scooter accessible, but the USS Blueback is not. OMSI also lists accessible parking, wheelchairs and motorized scooters on a first-come basis, sensory kits, and visual or audio assistance; checking the museum’s access details before arrival is wise when a specific service is needed.

Is OMSI Worth Visiting?

Yes, OMSI is worth visiting for families, curious adults, and travelers who want an indoor Portland attraction with enough variety for several hours. The strongest reason to go is the combination: few museums place working labs, a planetarium, a large-format theater, and a real submarine at the same site.

• Choose OMSI for young children: Focus on Science Playground, simple hands-on stations, and a shorter visit.
• Choose OMSI for older children and teens: Add the labs, engineering activities, the planetarium, or the submarine.
• Choose OMSI for adults: Check the film calendar, planetarium schedule, featured exhibitions, Science Pub, or OMSI After Dark.
• Skip or shorten it: A traveler seeking fine art, historic interiors, or a quiet collection-based museum may prefer another Portland stop.

The most balanced first visit is three to four hours with general admission plus one timed extra. Pick the submarine for a rare historic setting, the planetarium for space science, or the featured exhibit when its subject is the main draw.