Towns (alphabetically):

• Acton
• Alfred
• Arundel
• Berwick
• Buxton
• Cornish
• Dayton
• Eliot
• Hollis
• Kennebunk
• Kennebunkport
• Kittery
• Lebanon
• Limerick
• Limington
• Lyman
• Newfield
• North Berwick
• Ogunquit
• Old Orchard Beach
• Parsonsfield
• Shapleigh
• South Berwick
• Waterboro
• Wells
• York

Sanford

• Sanford-Springvale Rail Trail: A six-mile multi-use trail built on an old rail bed running from the Lebanon town line through Sanford and Springvale, passing forests, ponds, and recreational fields.
• Mousam Way Trail System: Network of trails along the Mousam River, with access points at Emery Street, School Street, and Mousam Way Park. Features boardwalks, forest sections, river views, and landmarks like Indian’s Last Leap.
• Springvale Historic Walk: Follows city sidewalks and wooded paths along the Mousam River, with numerous historically marked sites, starting at Mousam Way Park.
• Sanford High School/YMCA Trails: Trails starting from Gowen Park Gazebo and the YMCA parking area, going through fields, woods, ponds, and along esker ridges. Multiple loops and connectors provide options for varying lengths and difficulty.
• Marginal Way Trail: Paved and gravel segments starting from High School Boulevard and Prospect Street; connects with the Sanford-Springvale Rail Trail and local ponds.
• Blouin Field Trails: Trails surrounding Blouin Field, connecting with Sanford High School and riverfront park areas.

There are also other rugged footpaths, bike paths, and boardwalk trails throughout Sanford for all abilities[5][6]. Popular hiking areas near Sanford include Bauneg Beg Mountain Conservation Area, Mount Agamenticus, and the Rachel Carson National Wildlife Refuge, all within a short drive[7][8].

Here is a list of notable hiking trails in York County, Maine, including details on distance, difficulty, dog-friendliness, parking, and distinguishing features:

Biddeford

• Clifford Park: 5+ miles of multi-use forest trails, including moderate and advanced routes, with features like waterfalls and a well-developed network.
• Timber Point Trail (Rachel Carson National Wildlife Refuge): A scenic 1.4-mile loop through forests and marshes, ending at the Atlantic Ocean. Timber Island is accessible at low tide.
• Eastern Trail: A flat, easy, off-road trail suitable for walking, running, and biking. The section connecting Biddeford to Kennebunk is over six miles and ADA accessible.
• East Point Sanctuary: An 0.8-mile walk with ocean views. No dogs allowed.
• Biddeford Riverwalk: Short city walk along the river, offering dramatic mill views.
• Blandings Park Wildlife Sanctuary: About 3.1 miles of paths in a 225-acre natural area, home to Blanding’s turtles.
• Fortune’s Rocks Beach: While primarily a beach, it offers walking/hiking opportunities along the shore.
• Bridle Path (nearby Kennebunk): Passes through the Madelyn Marx Preserve, easy and scenic.

Saco

• Cascade Falls Trail: Short, easy loop with a scenic waterfall and historic features. Located at 61 Cascade Road. Family-friendly and managed by Saco Bay Trails.
• Horton Woods Trail: 2.4-mile loop through woods and wetlands, moderate difficulty, located on Route 112 near the Saco-Buxton line.
• Saco Heath Preserve Trail: A 2.1-mile loop through unique heathland habitat, boardwalks, and woodland. Great for all skill levels, with spring wildflowers. Owned by The Nature Conservancy.
• Saco Heath Preserve Trail: 2.1-mile boardwalk and woodland hike through a unique peat bog, managed by The Nature Conservancy.
• Sylvan Trail: 1.6-mile loop with wildflowers, off Flag Pond Road.
• RiverWalk Trail: Riverside path with views, stretches from Hall Ave, through Saco Island Loop, and connects to Biddeford.
• Atlantic Way, Plymouth, and Vines Trails: Neighborhood trails in the Kinney Shores area, each under a mile, passing through woods and marsh with views of Goosefare Brook. Scenic views and access from Atlantic Way and Seaside Ave.
• Eastern Trail (Saco section): Over 8 miles of flat, easy, multi-use trail passing through Saco toward Old Orchard Beach and Scarborough. Suitable for walking, biking, and running; dog-friendly.
• Eastern Trail (Saco section): Multi-use, ADA-accessible flat trail connecting Saco, Old Orchard Beach, and Scarborough, with marsh and river views[2][10].
• Ferry Beach State Park Trails: Nature trails through forest and along sand beaches, off Bayview Road[2].
• Fuller Farm: Short woodland loop, known by locals for an easy hike[8].
• Middle Goosefare Trail: Additional local option highlighted by Saco Bay Trails[11].

Kennebunk

• Rachel Carson National Wildlife Refuge: Features the accessible Carson Trail—a flat, scenic, and kid-friendly route through salt marsh and estuarine habitats. Ideal for bird-watching and nature walks, with beautiful vistas and well-maintained pathways. View Trail Map
• Edwin L Smith Preserve Trailhead: Offers more than 10 miles of well-marked trails over 1,100 acres of wildlife habitat. Includes both challenging and easy routes through woods and brooks, ideal for a quiet, immersive experience. View Trail Map
• Kennebunk Plains Preserve: A rare grassland with open skies and tranquil walking paths. Great for sunrise/sunset hikes, wildlife observation, and botanical exploration. View Trail Map
• James Wood Trail: A pleasant loop trail suitable for all levels. Dog-friendly and wooded, with a mix of firm and soft paths through a peaceful nature setting. View Trail Map (PDF)
• Hope Cemetery Trail: Located in Hope Woods, this trail network offers a quiet woodland walk perfect for families, birders, and those looking for central, peaceful strolls. View Trail Map
• Bridle Path through Madelyn Marx Preserve: Flat dirt trail running alongside the Mousam River. Beginner-friendly and scenic, popular with families and cyclists thanks to marsh views and open terrain. View Map
• Wonder Brook Preserve: Features approximately 3 miles of shaded forest paths by streams and the Kennebunk River. A quiet choice for birders, walkers, and moderate hikers near downtown.
  View Map / Details
• Eastern Trail (Kennebunk section): Part of a regional greenway, this well-maintained, wide trail supports walking, biking, and running. Dog-friendly and scenic, it's great for longer outdoor excursions.
  View Official Maps
• Picnic Rocks at Butler Preserve: A short trail leading to Picnic Rock on the Kennebunk River. Blends local history with river views; ideal for families looking for a quick, rewarding outing.
  View Area Map (PDF)

1. Mount Agamenticus Conservation Region (York)

• Distance: Over 40 miles of interconnected trails; The main Mount Agamenticus Loop is 1.8 miles (loop); Ring Trail is 2 miles.
• Difficulty: Easy to moderate (Ring Trail has moderate to difficult sections; Big A Trail is easier).
• Features: Summit with 360° panoramic views (including Isles of Shoals, Boston skyline, Mount Washington); forest, wildlife, learning lodge, picnic tables, fire tower (not climbable).
• Dog Friendly: Yes, dogs must be on leash.
• Parking: Ample parking at "Mount Agamenticus Trailhead" (searchable on GPS), with both gravel and paved options. There’s a fee for parking.
• Address: Mountain Road, York, ME. Red fence posts at the entrance mark the summit road.
• Other: Maps at kiosk, portable toilets in season, kid-friendly activities, accessible year-round.

2. Hartley Mason Reserve Loop (York)

• Distance: 0.3 miles (loop)
• Difficulty: Easy
• Features: Beautiful seaside park with harbor views; section of Cliff Walk Trail.
• Dog Friendly: Yes, leashed.
• Parking: York St (ME Route 1A), near Norwood Farms Rd.
• Other: Ideal for a quick, scenic walk.

3. Clifford Park (Biddeford)

• Distance: Approximately 5 miles of trails (network of loops: Black, Blue, Green, Red, Orange, White, Pink, Yellow blazed trails ranging from 0.1 to 1.3 miles each).
• Difficulty: Network includes easy, moderate, and difficult trails (outer loops more level and suited for casual walks, interior trails more challenging).
• Features: Forest, waterfall, technical sections for hikers and mountain bikers, picnic areas, tennis courts, small playground.
• Dog Friendly: Yes, dogs allowed.
• Parking: Off Pool Street (ME-208/9), across from Parent Ave, near tennis courts.
• Address: 130 Pool Street, Biddeford, ME 04005.
• Other: Waterfall on red trail, open dawn to dusk, restrooms nearby.

4. Highland Farm Preserve (York)

• Distance: About 2.9 miles of trails (7 trails, plus a 300-foot accessible trail).
• Difficulty: Easy to moderate
• Features: Varied terrain including fields, oak-pine forests, historic cemeteries, old stone walls, wildlife habitat restoration sites, vistas of Boulter Pond and York River watershed.
• Dog Friendly: Yes, on leash.
• Parking: Large lot at 321 Cider Hill Rd (ME-91), York.
• Other: Year-round hiking, birdwatching, historic features, portable toilet at parking

5. Webhannet Golf Club from Kennebunk Bridle Path (Kennebunk)

• Distance: 8.9km (5.5 miles, loop)
• Difficulty: Easy to moderate (old railroad bed, mostly flat, suitable for walking or biking).
• Features: Parallels Mousam River, scenic views, wildlife, suitable for all levels.
• Dog Friendly: Yes, recommended leashed.
• Parking: Sea Road School (71 Sea Road, Kennebunk, ME) is a common starting point.
• Other: Year-round access, also used for biking.

6. Additional Notable Trails

• Wiggly Bridge & Steedman Woods Trail (York): Short, easy, scenic, dog-friendly. [16][17]
• Fisherman’s Walk & Cliff Walk (York): Easy, cliffside/oceanside trails, historic views, restrictions for dogs during peak summer-day hours on sections leading to the beach. [18]
• Ring Loop, Big A Trail, Junkins Loop, Ridge Trail (York/Highland Farm/Mt. Agamenticus): Offer varied experiences for different skill levels, many with wildlife and historic features. [17][10][19]

General Notes

• Dog Friendliness: Most trails are dog-friendly; leashes are generally required.
• Facilities: Many preserves (especially larger ones like Mount Agamenticus and Highland Farm) have restrooms, picnic spots, trail maps, and information kiosks.
• Parking: Usually free, sometimes with a small fee (as at Mount Agamenticus), and access is clearly marked on major local roads.

This is not an exhaustive list, but covers the most popular and well-documented hiking opportunities in York County, ME. Many of the land trusts (York Land Trust, Kennebunk Land Trust, etc.) offer additional, lesser-known loop and connector trails—check their websites for detailed, downloadable maps and updates.