
Avalon Nature Preserve
Avalon Nature Preserve is a free nature preserve in Stony Brook, NY, with about 5 miles of walking trails. It is open Tuesday to Sunday all year, 6 a.m. to 8 p.m. in summer and 7 a.m. to 5 p.m. in winter, and leashed dogs are welcome. Park only in the designated lots on Shep Jones Lane. There are no restrooms and no trash cans, so carry out what you bring.
Avalon at a Glance
Hours by Season
The preserve opens Tuesday to Sunday, year round:
- Spring (April and May): 7 a.m. to 7 p.m.
- Summer (June to August): 6 a.m. to 8 p.m.
- Fall (September and October): 7 a.m. to 7 p.m.
- Winter (November to March): 7 a.m. to 5 p.m.
Cost
Avalon says entrance to the preserve "is always free."
Parking
This is where visitors get caught out. Parking is allowed only in the designated lots along Shep Jones Lane. Avalon warns that Shep Jones Lane is an active road, and that cars parked along it outside the lots will be ticketed. There is no parking on Harbor Road, Rhododendron or other neighbouring roads.

Trails
Avalon has about 5 miles of trails, with an interactive map on its website. The preserve asks visitors to stay on the trails, tread lightly and treat the plants and animals as hosts: "Observe, Don't Disturb."
Dogs
Dogs are welcome. They must be leashed at all times, and owners must pick up after them. That makes Avalon a good dog-friendly alternative to Sunken Meadow, where pets are barred from the main park. See dogs at Sunken Meadow.
What Not to Expect
- No restrooms. Avalon has no public restrooms.
- No trash cans. Carry in, carry out.
- No picnics. Avalon asks visitors not to picnic in the preserve and points them to restaurants in nearby Stony Brook Village.
- Groups: up to 15 people, with permission from the preserve office.
Programs
Avalon runs classes, talks and children's programs through the year; see its events calendar. The office is at 200 Harbor Road, Stony Brook, phone (631) 689-0619.
Avalon or Sunken Meadow?
- Bring the dog: Avalon.
- Swim, picnic or play golf: Sunken Meadow.
- A free walk with no vehicle fee: Avalon.
- A long hike: Sunken Meadow's 14.1 miles of trails or the Greenbelt Trail.
- Restrooms: Sunken Meadow.

Avalon Nature Preserve FAQ
Is Avalon Nature Preserve free?
Yes. Avalon says entrance is always free.
Are dogs allowed at Avalon Nature Preserve?
Yes, on a leash at all times, and you must pick up after your dog.
Where do you park for Avalon Nature Preserve?
Only in the designated lots along Shep Jones Lane. Do not park on Harbor Road or neighbouring streets.
What are Avalon Nature Preserve's hours?
Tuesday to Sunday, year round: 7 a.m. to 7 p.m. in spring and fall, 6 a.m. to 8 p.m. in summer, 7 a.m. to 5 p.m. in winter.
Does Avalon have bathrooms?
No. There are no public restrooms or trash cans in the preserve.