Sussex County has good options for dog owners, and the rules are less uniform than most people expect.
Leash requirements, seasonal beach bans, and park-by-park exceptions all change the answer depending on exactly where you’re going.
This guide compiles the verified rules for every major trail and beach area in the county. Check the table first, then read the notes for the place you’re visiting.
Quick facts
- Leash rule: 6-foot leash on Delaware State Parks trails; short handheld leash throughout Prime Hook refuge
- Seasonal beach ban: dogs prohibited on swimming and sunbathing beaches May 1 to Sep 30, by Delaware State Law
- Free dog-friendly trails: Georgetown-Lewes Trail, Junction & Breakwater Trail, Prime Hook refuge
- Official sources: Delaware State Parks pets policy and USFWS Prime Hook rules
- Last verified: 2026-06
Where dogs are allowed: quick comparison
| Place | Dogs? | Leash / seasonal rule |
|---|---|---|
| Cape Henlopen State Park | ||
| Junction & Breakwater Trail | Yes | Dogs explicitly listed as a trail user group; leash rule from park applies on state park segments |
| Gordons Pond Trail | Yes | 6-foot leash; beach access limited to pedestrian dune crossing at north end of parking lot |
| Swimming / sunbathing beaches | Seasonal ban | Prohibited May 1 to Sep 30 by Delaware State Law; allowed off-season via pedestrian dune crossings |
| Beach Plum Island | No | Prohibited year-round |
| Cabin 12 | Yes | Designated dog-friendly cabin; pet fee applies |
| Delaware Seashore State Park | ||
| Park trails / general access | Yes | 6-foot leash throughout the park |
| Swimming / sunbathing beaches | Seasonal ban | Prohibited May 1 to Sep 30 by Delaware State Law |
| Thompson Island Nature Preserve | No | Pets and bicycles prohibited on the trail and in the preserve year-round |
| Long-Distance Trails | ||
| Georgetown-Lewes Trail | Yes | Dog walkers explicitly listed as a target user group; no leash rule stated on trail page |
| Junction & Breakwater Trail (full route) | Yes | See Cape Henlopen above for the state park segment |
| Prime Hook National Wildlife Refuge | ||
| All refuge trails | Yes | Short handheld leash required for the entire visit; owners must clean up |
| Redden State Forest | ||
| All trails | Not stated | No leash rule or prohibition appears on the DDA state-forests pages; contact the forest office to confirm |
Quick Answers
- Is there anywhere dogs can be off-leash? Delaware State Parks require a 6-foot leash throughout. Prime Hook requires a “short handheld leash.” No off-leash area appears in any of the verified sources for county public land.
- What’s the best dog-friendly trail near Rehoboth? The Junction & Breakwater Trail and the Georgetown-Lewes Trail are both flat, paved, and explicitly welcome dog walkers.
- Can dogs go on the beach at Cape Henlopen? Not from May 1 through September 30 on swimming and sunbathing beaches. Outside that window, access is via pedestrian dune crossings at designated parking areas.
- Are dogs allowed at Prime Hook? Yes, on a short handheld leash the entire visit, and owners must clean up after them.
- What areas are closed to dogs year-round? Beach Plum Island (associated with Cape Henlopen) and Thompson Island Nature Preserve within Delaware Seashore are both off-limits to pets regardless of season.
The rail-trails: dogs welcome year-round
The county’s two long paved rail-trails are the clearest yes for dog owners.
The Junction & Breakwater Trail runs along a converted rail line between Lewes and Rehoboth. According to Delaware Greenways, dogs are explicitly part of the trail’s user community alongside walkers, cyclists, families with strollers, and wheelchair users.
The trail passes through Cape Henlopen State Park land for part of its route. The state park’s general 6-foot leash rule applies on those segments.
The Georgetown-Lewes Trail covers 11 paved miles on the former Delaware Coast Line Railroad bed. Delaware Greenways describes the trail as serving “walkers, bikers, dog walkers and families.” No leash rule appears on the trail page, though checking local signage at the trailhead is always sensible.
Both are flat and accessible, which also makes them good context for the stroller and wheelchair trails guide. Inland, Trap Pond’s Bob Trail is another leashed-dog option; confirm the park’s current rule before you go.
Cape Henlopen State Park: good trails, seasonal beach ban
Cape Henlopen is the county’s marquee park, and the dog rules there have two distinct layers.
On the trails, the standard Delaware State Parks policy applies: a leash no longer than 6 feet, pet under owner’s control at all times, per the Delaware State Parks pets page. The Gordons Pond Trail is fine for leashed dogs; the trailhead fact sheet covers the access details.
The beach is the complication. Delaware State Law prohibits pets from all swimming and sunbathing beaches from May 1 to September 30. This is a statewide rule, not a park-by-park decision.
Outside that window, dogs can reach the beach via pedestrian dune crossings at designated parking areas. At Gordon’s Pond specifically, access is limited to the crossing at the northern end of the parking lot.
A few park areas are closed to pets regardless of season: picnic areas, bird nesting areas, and bathhouse boardwalks. Beach Plum Island is closed to pets year-round. Guide dogs are permitted in all pedestrian areas under the state parks policy.
Rules differ park by park. Check the one you’re visiting, not the one you visited last.
Delaware Seashore State Park: same law, one extra restriction
Delaware Seashore follows the same seasonal beach ban as Cape Henlopen. No pets on swimming and sunbathing beaches from May 1 through September 30, per Delaware State Law and the parks pets policy. The 6-foot leash rule applies throughout the park.
One area adds a year-round prohibition. The Thompson Island Nature Preserve trail and preserve are closed to pets entirely, with the rule stated directly on the Delaware Seashore park page.
Prime Hook National Wildlife Refuge: leash required throughout
Prime Hook is one of the more dog-friendly public lands in the county, because the leash requirement is clear and consistent. The USFWS rules page states: “Dogs are permitted on a short handheld leash for the entire visit. Please clean up after your pets.” The rule covers all of the refuge’s walking trails.
There’s no seasonal ban and no area-specific restriction beyond that. The trade-off worth knowing: USFWS flags June through September as the refuge’s worst stretch for mosquitoes, ticks, and biting flies. If you’re bringing a dog in summer, come early and use protection.
Redden State Forest: rules unclear, contact the office
Redden is a 14,000-acre block of mixed forest in central Sussex County with more than 44 miles of trails. The DDA state forests pages don’t state a leash requirement or a dog prohibition.
That absence isn’t a green light. The governing regulations (Delaware Admin Code Title 3/402) may specify rules that aren’t republished on the web pages. Contact the Redden State Forest office before your visit to confirm current pet rules.
Beach timing: the practical summary
The seasonal rule comes from Delaware State Law and applies to all state park seashore beaches. May 1 to September 30 is the window when dogs are prohibited on swimming and sunbathing beaches at Cape Henlopen and Delaware Seashore. Outside that window, access is through pedestrian dune crossings at designated parking areas.
If your trip falls between October and April, the same 6-foot leash rule applies, but the seasonal ban is lifted. Come early in the day to avoid crowds, and check that the specific beach access point you’re using isn’t a closed bird nesting area.
Park signs prohibiting pet entry into specific areas must be followed, per the state parks policy. When in doubt, the sign on site is the authority.
Trail etiquette and what to bring
The 6-foot leash is the rule at Delaware State Parks and a best practice everywhere else. A short handheld leash is required at Prime Hook. Trail etiquette on the shared rail-trails means stepping aside on the paved surface to let cyclists pass.
Cleanup is required at Prime Hook by the explicit refuge rule and expected everywhere else. Most trailheads have waste bag dispensers; having your own is the more reliable plan.
Per the parks pets policy, pets may not be left unattended at Delaware State Parks. Picnic areas in state parks are closed to pets year-round.
Frequently asked questions
Are dogs allowed at Cape Henlopen State Park?
Yes, on a 6-foot leash throughout the park’s trails, per the Delaware State Parks pets policy. The exception is the swimming and sunbathing beaches, where pets are prohibited May 1 through September 30 by Delaware State Law. Beach Plum Island is closed to pets year-round.
Can I take my dog on the Gordons Pond Trail?
Yes. The Gordons Pond Trail is a trail within Cape Henlopen State Park, so the standard 6-foot leash rule applies. If you’re combining the trail with a trip to the beach, the seasonal ban affects the beach sections, not the trail itself.
What is the off-season dog beach access at Cape Henlopen?
Outside the May 1 to September 30 ban window, dogs can access the beach via pedestrian dune crossings at designated parking areas. At Gordon’s Pond, access is limited to the crossing at the northern end of the parking lot, per the Delaware State Parks pets page.
Are dogs allowed at Prime Hook National Wildlife Refuge?
Yes. The USFWS rules page confirms dogs are permitted on a short handheld leash for the entire visit. Owners are required to clean up after them, and the rule applies to all trails in the refuge.
Do I need to call ahead to bring a dog to Redden State Forest?
The DDA pages for Redden don’t state a leash rule or a prohibition, and the governing Admin Code wasn’t accessible for verification. Calling the forest office before your visit is the safe move. The general county hiking guide at hiking in Sussex County has the contact information.
Photo: Acroterion (CC BY-SA 4.0), via Wikimedia Commons.
Last verified: 2026-06.