Morro Bay Harbor and Estuary is a . mile moderately trafficked loop trail located near Morro Bay, California that offers the chance to see wildlife and is good for all skill levels. The trail is primarily used for walking, running, and sea kayaking and is best used from June until November. Dogs are also able to use this trail but must be kept on leash..Explore the best trails in Morro Bay, California on TrailLink. With more than Morro Bay trails covering miles, you’re bound to find a perfect trail like the Bob Jones City to the Sea Trail or Santa Maria Valley Multi Purpose Trail. View detailed trail descriptions, trail maps, reviews, photos, trail itineraries, directions and more on TrailLink..Looking for a great trail in Morro Bay State Park, California? AllTrails has great hiking trails, running trails, views trails and more, with hand curated trail maps and driving directions as well as detailed reviews and photos from hikers, campers, and nature lovers like you..Hiking Trail Running. Exploring the trail system in and around Morro Bay is a great excuse to get outside and get active. There are a variety of routes to suit any skill level, all with stunning views..