3.5
(27)
29
runners
Back Bay Loop Trail
01:44
16.4km
140m
Running
Encircling the Upper Newport Bay Nature Preserve, the Back Bay Loop Trail offers a challenging jogging experience. This difficult route covers 10.2 miles (16.4 km) and involves a total elevation gain of 445 feet (136 metres), typically taking about 1 hour and 43 minutes to complete. As you jog, you will encounter diverse landscapes, from coastal vistas to serene wetlands and marshes, with the Estuary wildlife observation area being a notable visual landmark.
Planning your visit to the Back Bay Loop Trail is straightforward, as it offers multiple access points for convenience. You will find available parking options situated along various sections of the route. Be aware that this is a multi-use pathway, so you will be sharing the trail with walkers, cyclists, and occasionally even horseback riders. Consider starting your jog early in the morning to enjoy cooler temperatures and potentially fewer people on the path.
The route provides an excellent opportunity to observe the rich biodiversity of the Upper Newport Bay. The wetlands and marshes serve as a significant habitat for various bird species, including herons, egrets, and ducks. This natural environment makes the trail a prime location for wildlife viewing while you get your workout in.
Last updated: April 23, 2026
Waypoints
Start point
Parking
Get Directions
1.68 km
Newport Bay
Highlight • Beach
Tip by
7.62 km
Peter and Mary Muth Interpretive Center trails
Highlight • Trail
Tip by
8.38 km
Back Bay Loop Trail — Upper Newport Bay
Highlight (Segment) • Trail
Tip by
12.3 km
Estuary wildlife observation area
Highlight • Viewpoint
Tip by
13.0 km
Back Bay Drive
Highlight (Segment) • Cycleway
Tip by
16.4 km
End point
Parking
Way Types & Surfaces
Way Types
11.7 km
1.86 km
1.21 km
855 m
781 m
Surfaces
7.44 km
7.08 km
1.55 km
325 m
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Elevation
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Weather
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Today
Wednesday 6 May
20°C
14°C
0 %
Additional weather tips
Max wind speed: 21.0 km/h
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This route was planned by komoot.
Frequently Asked Questions
How long does it typically take to jog the Back Bay Loop Trail?
The full loop is approximately 16.4 km (10.5 miles) long. For an average jogger, it takes about 1 hour and 45 minutes to complete the entire route, though this can vary based on your pace and any stops you make.
What is the terrain like on the Back Bay Loop Trail?
The trail is predominantly flat and paved, making it ideal for jogging. Some sections also offer dirt paths running alongside the main paved route, providing variety. While mostly flat, there are a few slight hills and bridge crossings that add minor variations to the elevation.
Is the Back Bay Loop Trail suitable for beginner joggers?
Yes, the trail is widely considered accessible and suitable for all fitness levels, including beginners. Its mostly flat profile and well-maintained surfaces make for a manageable and enjoyable jogging experience.
Are dogs allowed on the Back Bay Loop Trail?
Yes, dogs are generally allowed on the Back Bay Loop Trail. However, they must be kept on a leash at all times to protect the local wildlife and ensure a pleasant experience for all trail users. Please remember to clean up after your pet.
What are the best times of year to jog the Back Bay Loop Trail?
The trail is enjoyable year-round, but spring and fall offer the most pleasant jogging conditions with milder temperatures. Early mornings or late afternoons are also recommended during summer to avoid the midday heat. These times also often provide excellent opportunities for wildlife viewing.
Are there any permits or entrance fees required to access the Upper Newport Bay Nature Preserve or the trail?
No, there are no permits or entrance fees required to access the Upper Newport Bay Nature Preserve or to jog the Back Bay Loop Trail. It is freely accessible to the public.
Where can I park when visiting the Back Bay Loop Trail?
There are multiple access points and available parking areas along the trail. A popular starting point with parking is near the Peter and Mary Muth Interpretive Center trails. Other parking options can be found at various points around the Upper Newport Bay.
What kind of wildlife can I expect to see along the trail?
The Upper Newport Bay Nature Preserve is a significant habitat for diverse bird species. Joggers often spot herons, egrets, ducks, and various shorebirds. The Estuary wildlife observation area is a particularly good spot for birdwatching.
What points of interest or scenic views can I find along the route?
The trail offers stunning views of Newport Bay, expansive wetlands, and marshes. Key points of interest include the Peter and Mary Muth Interpretive Center trails, the Back Bay Science Center at Shellmaker Island, Upper Castaways Park, and Big Canyon. Informative signs along the way provide educational insights into the local environment.
Does the Back Bay Loop Trail connect with other paths?
Yes, the route also passes through sections of the Mountains to Sea Trail and the San Diego Creek Bike Trail, offering opportunities for longer excursions or exploring interconnected paths.
Are there restrooms or water fountains available along the trail?
Yes, convenient amenities such as benches, picnic tables, and restrooms are available at various points along the route, particularly near major access points and interpretive centers. It's still advisable to carry your own water, especially on warmer days.