4.6
(2616)
12,483
riders
Back Bay Loop Trail
00:54
18.1km
140m
Road cycling
Embark on an easy road cycling adventure around the Upper Newport Bay Nature Preserve. The Back Bay Loop Trail offers 11.2 miles (18.1 km) of paved paths, with a gentle elevation gain of 449 feet (137 metres), making it suitable for all skill levels. You can expect to complete this scenic route in about 54 minutes, enjoying continuous views of the wetlands and the bay, with opportunities to spot diverse birdlife.
Planning your visit is straightforward, as the trail provides multiple access points and convenient amenities. You will find benches, picnic tables, and restrooms at various locations, including the Peter and Mary Muth Interpretive Center. Parking is available at several points around the loop, with some options offering free parking, allowing you to start your ride with ease.
This route is a prime spot for birdwatching, as the Upper Newport Bay is a significant ecological reserve. As you cycle, keep an eye out for herons, egrets, and ospreys that frequent the area. Informative signs along the way explain the local flora and fauna, enriching your ride with insights into this vibrant coastal ecosystem.
Last updated: April 23, 2026
Waypoints
Start point
Bus stop
Get Directions
1.88 km
Newport Bay
Highlight • Beach
Tip by
9.62 km
Back Bay Loop Trail
Highlight (Segment) • Trail
Tip by
18.1 km
End point
Bus stop
Way Types & Surfaces
Way Types
12.6 km
3.76 km
891 m
574 m
146 m
< 100 m
Surfaces
11.3 km
6.56 km
159 m
Sign up to see more specific route details
Sign up for free
Elevation
Sign up to see more specific route details
Sign up for free
Weather
Powered by Foreca
Today
Wednesday 6 May
22°C
11°C
0 %
Additional weather tips
Max wind speed: 17.0 km/h
to get more detailed weather forecasts along your route
This route was planned by komoot.
Frequently Asked Questions
Where can I park to access the Back Bay Loop Trail?
There are multiple access points with parking available around the trail. Some popular spots include the Peter and Mary Muth Interpretive Center and Newport Dunes, both of which offer amenities like restrooms. Some parking areas may even be free.
Is the Back Bay Loop Trail suitable for beginner road cyclists?
Yes, this trail is considered easy and is highly suitable for beginner road cyclists and families. It features mostly flat, paved paths with only a few slight hills that are not overly strenuous, making it accessible for all fitness levels.
What kind of scenery and wildlife can I expect to see along the route?
You'll enjoy breathtaking views of the Newport Bay, its wetlands, and marshes. The trail winds through the Upper Newport Bay Nature Preserve and Ecological Reserve, which is a haven for various bird species like herons, egrets, ducks, and ospreys. Informative signs along the way provide insights into the local flora and fauna.
What is the best time of year to road cycle the Back Bay Loop Trail?
The trail is enjoyable year-round due to Southern California's mild climate. However, visiting during spring or fall often provides the most comfortable temperatures for cycling and excellent opportunities for birdwatching as migratory birds pass through the Upper Newport Bay Nature Preserve.
Are dogs allowed on the Back Bay Loop Trail?
While the trail itself is generally dog-friendly, specific regulations may apply within the Upper Newport Bay Nature Preserve. It's always best to keep dogs on a leash and be mindful of wildlife and other trail users.
Do I need a permit or is there an entrance fee for the Upper Newport Bay Nature Preserve?
There are no specific permits required or entrance fees to access the Back Bay Loop Trail or the Upper Newport Bay Nature Preserve. It is freely accessible to the public for recreational activities.
How long does it typically take to road cycle the entire loop?
The full loop is approximately 10 to 10.5 miles (about 18 km). For an average road cyclist, it typically takes around 50-60 minutes to complete, depending on your pace and how often you stop to enjoy the views.
Does the trail connect to other cycling paths?
Yes, the route connects to other local paths, including sections of the San Diego Creek Trail and the longer 22-mile Mountains to Sea Trail, offering opportunities for extended rides if you wish to explore further.
Are there any amenities like restrooms or picnic areas along the way?
Yes, the trail offers convenient amenities at various locations. You'll find benches, picnic tables, and restrooms at spots like the Peter and Mary Muth Interpretive Center and Newport Dunes, making it easy to take a break.
What are some notable viewpoints or landmarks along the trail?
As you cycle, you'll encounter several lookout points and vista points, such as Upper Castaways Park and the Back Bay Science Center. These spots provide excellent opportunities to pause and take in panoramic views of the bay and its natural surroundings.
Are there any tricky sections for road cyclists on the Back Bay Loop Trail?
While mostly flat and paved, some sections, particularly those along Dover and Irvine Avenue, can be a bit trickier due to sharing with traffic or narrower paths. It's advisable to stay alert in these areas.