San Gabriel River & Bolsa Chica Loop

Parking is available at various points along the San Gabriel River Trail, particularly near its southern end in Seal Beach or at parks along the river. For the Bolsa Chica section, parking lots are available along Pacific Coast Highway near Seal Beach and the Bolsa Chica Ecological Reserve. Some beach parking lots may require a fee.

While the route is generally considered easy due to its mostly flat profile and dedicated paths, its significant length (around 45 km or 28 miles) and potential headwinds, especially when cycling back inland from the coast, can make it challenging. Beginners should be prepared for a longer ride and consider starting with a shorter section.

The core of the route, the San Gabriel River Trail, is largely a paved, multi-use path. However, the surface can be worn, with cracks and some potholes. There's a slight downhill grade towards the ocean and one short, notable climb of about 40 feet near the Santa Fe Dam. The coastal section, including the Bolsa Chica State Beach bike path, is wide and well-paved.

The route offers varied scenery. Along the San Gabriel River Trail, you'll pass through residential and industrial areas, with views of the San Gabriel Mountains. Some sections are more natural, especially around the Santa Fe Dam, offering opportunities to spot wildlife. The coastal portion provides classic beachside views, with the ocean, outdoor showers, and fire pits near Seal Beach and the Bolsa Chica Ecological Reserve. Note that bicycles are not permitted within the ecological reserve itself.

The route can be enjoyed year-round, but spring and fall generally offer the most pleasant cycling conditions with milder temperatures. Summer can be warm, especially inland, and coastal areas may experience morning fog. Be aware of potential strong onshore headwinds, particularly when cycling inland from the coast, which can occur at any time of year.

Dogs are generally permitted on the San Gabriel River Trail on a leash. However, specific rules may vary in different park sections or along the coastal paths. Always check local signage for the most current regulations regarding dogs, especially in ecological reserve areas where they might be restricted.

No specific permits are required to cycle the San Gabriel River Trail or the public bike paths along Bolsa Chica. However, some parking lots, particularly those at state beaches or certain parks, may charge a fee. It's advisable to check parking information beforehand.

Yes, the route connects to several other major bike paths, allowing for extended rides. It includes sections of the California Mission Trail - stage 03 San Juan Capistrano to Mission San Gabriel Arcangel, OC Loop, San Gabriel River Greenway, Huntington Beach Bike Trail, Coyote Creek Bikeway, and the Pacific Coast Bike Route.

Given the route's length and exposure, it's recommended to bring plenty of water, snacks, sun protection (sunscreen, hat, sunglasses), and basic bike repair tools. A helmet is essential. Layers of clothing are also advisable due to potential temperature changes between inland and coastal sections, and to account for headwinds.

Yes, as the route passes through various communities and ends near Seal Beach and the Bolsa Chica Ecological Reserve, there are opportunities to find cafes, restaurants, and convenience stores, particularly in the more developed sections and near the coast.

A significant advantage of the San Gabriel River Trail, which forms a large part of this loop, is that it is almost entirely off-street. This provides an uninterrupted cycling experience without frequent stops for traffic lights or concerns about vehicular traffic, making it excellent for endurance training.