Island Camping in Penobscot Bay
Warren Island State Park is a 70-acre island in Penobscot Bay, accessible only by boat. It sits in the sheltered waters between Islesboro and the mainland near Lincolnville Beach, about a mile offshore. With just 12 campsites and a handful of Adirondack shelters, this is one of the most intimate and unique camping experiences in Maine, your own island in one of the most beautiful bays on the Atlantic coast.
The island is heavily wooded with spruce and fir, with a rocky shoreline that gives way to small pebble beaches in the protected coves. Bald eagles nest on the island, harbor seals haul out on nearby ledges, and the waters around the island are home to porpoises and occasionally whales. At night, with no light pollution from the mainland reaching the island’s interior, the stars and Milky Way are spectacular.
Getting to Warren Island is part of the adventure. Most campers launch kayaks from Lincolnville Beach and paddle the 1-mile crossing. Boaters can use the moorings provided by the park. The Maine State Ferry, which runs from Lincolnville to Islesboro, passes close by, watching the big ferries navigate the bay from your campsite is part of the daily entertainment.
The Campground
Warren Island has 12 designated campsites, including tent sites and Adirondack-style three-sided shelters. The sites are spread around the island’s shoreline and interior, with generous spacing that ensures real privacy. Each site has a picnic table and fire ring. Given the island’s small size, even the most interior site is a short walk to the water’s edge.
The island has vault toilets and a hand pump for potable water. There are no showers, no electricity, and no hookups. A caretaker lives on the island during the operating season and can assist with emergencies. Moorings in the protected harbor on the island’s western side accommodate visiting boats.
The Adirondack shelters are popular for their views and protection from weather. They face the water and provide a covered sleeping area that keeps you dry in rain while still feeling like outdoor camping. Tent sites are on cleared platforms or flat spots in the forest. The island’s soil is thin over granite, so bring freestanding tents, staking into bedrock is not possible in many spots.
Book an Adirondack shelter if you can. They are the most scenic accommodations on the island and provide valuable rain protection. Shelter 1 and Shelter 2 face west toward the mainland and get stunning sunsets over the Camden Hills. Reserve early for July and August weekends.
Things to Do
Sea kayaking is the primary activity. The waters around Warren Island offer excellent paddling with a mix of sheltered coves and more open bay crossings. Paddle to the nearby islands, explore the rocky coastline, or make the longer crossing to Islesboro’s shore. Seal watching is productive, harbor seals rest on the ledges just south of the island at low tide, and they are curious enough to approach kayakers at a respectful distance.
Fishing from the island’s shore and surrounding waters targets mackerel, striped bass, and bluefish in season. Mackerel are abundant in Penobscot Bay from July through September and can be caught on simple tackle. For those with boats, the deeper waters around the island hold cod, pollock, and occasional halibut.
The island itself has informal walking trails through the interior forest and along the shoreline. A circuit of the island takes about an hour and reveals different perspectives of the bay, the Camden Hills, and the surrounding islands. Beachcombing on the pebble coves turns up sea glass, periwinkles, and the occasional lobster buoy that has washed ashore. Bird watching is excellent, ospreys, great blue herons, and eiders are common in addition to the resident eagles.
The paddle from Lincolnville Beach to Warren Island crosses open water in Penobscot Bay. Conditions can change rapidly, fog, wind, and current are all factors. Only experienced kayakers should make this crossing, and always check weather and tide conditions before departing. Wear a PFD and carry a marine VHF radio or whistle.
When to Go
Spring
Island opens June 15. Before that, access is not maintained and water conditions are cold and unpredictable.
Summer
July and August offer the warmest water, longest days, and calmest seas. Peak season for all activities.
Fall
Early September is beautiful, fewer boaters, warm days, cooler nights. Island closes September 15.
Winter
Island closed September 15 through June 15. No winter access.
Getting There
Most campers launch from Lincolnville Beach, which has a public boat ramp and kayak launch. The paddle to Warren Island is approximately 1 mile across sheltered water. From Lincolnville Beach, head southeast toward the island. It is clearly visible from shore.
Boaters can approach from any direction and use the park moorings on the island’s western side. The Lincolnville-to-Islesboro ferry passes nearby, so stay clear of the ferry lane during crossings.
Lincolnville Beach is on Route 1, about 5 miles north of Camden. From Portland, the drive is approximately two hours via Route 1 or I-295 to Route 1. From Bangor, the drive is about 75 minutes via Route 1A.
If you do not have your own kayak, several outfitters in Camden and Lincolnville rent sea kayaks and can arrange guided trips to Warren Island. Maine Sport Outfitters in Rockport is a reliable option. They can also provide dry bags and safety equipment. Book rentals at least a week in advance during summer.
Warren Island Camping Packing List
- Sea kayak or other watercraft (required for access)
- PFD and safety equipment (whistle, light)
- Dry bags for all gear (everything crosses water)
- Freestanding tent (ground is thin over rock)
- Sleeping bag and pad
- Camp stove and fuel (carry all food in)
- Water bottles (hand pump available on island)
- Binoculars for eagle and seal watching
- Fishing rod and tackle for mackerel
- Rain gear (island weather can change fast)
FAQ
Do I need my own boat to get to Warren Island?
Yes. There is no ferry service to the island. Most people kayak from Lincolnville Beach (about 1 mile). You can also use a motorboat, sailboat, or canoe. Kayak rentals are available in Camden.
Is the crossing dangerous?
The crossing is relatively sheltered but still open water. Conditions can change quickly. Only experienced paddlers should attempt it, and never in fog, high winds, or strong currents. Check NOAA marine forecasts before departing.
Are dogs allowed?
Yes. Dogs are allowed on the island and must be on a leash.
Is there drinking water on the island?
Yes. A hand pump provides potable water. Bring water bottles to fill. The supply is reliable during the operating season.
How do I make a reservation?
Through the Maine state park reservation system (campwithme.com). Warren Island has a short season (June 15 - September 15) and limited sites. Book early for summer weekends.
