70 Miles of Coast
Your guide to San Diego — beaches, trails,
tide pools, neighborhoods and things to do.

Field guide index

Lagoons And Nature Centers

Explore lagoons and nature centers through our San Diego field notes. Find practical guides, coastal context and links to the official information you need before heading out.

Salt marsh and channels at Los Peñasquitos Lagoon
Los Peñasquitos / San Diego coast

Natural Lagoons in San Diego: Los Peñasquitos and Wetlands

Start with the landscape: coastal lagoons are living wetland systems, not swimming lakes. Los Peñasquitos makes that distinction clear.

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The courtyard and adobe ranch house at Rancho Los Peñasquitos
San Diego County

Hidden Places San Diego: Five Respectful Finds

Five alternatives to a crowded beach checklist, chosen for public access, habitat and a slower kind of exploring rather than secrecy.

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Wetlands and winding water channels at San Elijo Lagoon
North County / San Diego coast

San Diego Lagoons and Nature Centers: Where to Start

Pick a lagoon for the kind of visit you want: an interpretive center, a shoreline trail or a quiet wetland viewpoint.

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Open water and marsh along San Dieguito Lagoon
Del Mar / San Dieguito Lagoon

Coast to Crest Trail at San Dieguito Lagoon: Walking Guide

The lagoon section is an easy-rated part of a much larger trail system. Use the official map to choose a short out-and-back or a longer wetland walk.

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American coot photographed in the San Elijo Lagoon area
San Diego County

Best San Diego Birding Hotspots on the Coast

Compare coastal San Diego birding hotspots, from Famosa Slough and San Elijo Lagoon to Point Loma and the Tijuana estuary.

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Coastal sage scrub beside Agua Hedionda Lagoon in Carlsbad
Carlsbad

Agua Hedionda Lagoon: Discovery Center and Trail Guide

Start at the Discovery Campus, then choose a lagoon-side walk that fits your group. Separate trailheads make a little advance planning worthwhile.

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Close view of pickleweed, a salt-marsh plant also found at Famosa Slough
Point Loma / Famosa Slough

Famosa Slough Plants: Salt Marsh to Coastal Sage Scrub

Learn the wetland by reading its plant zones rather than trying to identify every species on your first walk.

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