US lakes & pondsUS lakes & pondsCampground · National park in Southwest Harbor, Hancock County, Maine. Run by National Park Service.
| Operator | National Park Service |
|---|---|
| Campsites | 178 |
| Site types | 82 walk to, 38 tent only no electric, 32 rv no electric, 21 standard, no electric, 5 group tent only area no electric |
| Longest RV/trailer site | 35 ft |
| RVs welcome | Yes |
| Tent sites | Yes |
| Showers | No |
| Toilets | Yes |
| Dump station | Yes |
| Wi-Fi | No |
| Dogs allowed | Yes |
| Campfires allowed | Yes |
| Season | May 26-Oct 10 open |
| Fee | Yes |
| Phone | (207) 244-3600 |
| Website | www.recreation.gov/camping/campgrounds/234674 |
| Reservations | Recreation.gov |
We only list amenities a source records. A missing item doesn't mean the campground lacks it, so check with Seawall Campground before you go.
For Seawall campsites, 90 percent of campsites are released six months in advance on the first of each month at 10 am EST. The remaining 10 percent are released at 10 am 14 days ahead of a desired arrival date on a rolling basis. For example, if you plan to arrive on May 24, you can make an online reservation starting at 10 am EST Dec 1 from the first release or starting at 10 am EST on May 10 from the second release. All campsite reservations must be made through recreation.gov. 90% of campsites are available six months in advance, and released on a monthly basis as described above. 10% of campsites are available at 10:00 a.m. EST.
Description: Recreation.gov (U.S. federal government, public domain), shortened.
Lakes and ponds on LakeRipple within 10 miles, closest first (straight-line distance to the shoreline). Each page has boat launches, beaches, fishing and today's weather.
Seawall Campground is in Southwest Harbor, Hancock County.
Sources: Recreation.gov (RIDB) · OpenStreetMap contributors (ODbL). Pulled Oct 12, 2026. Interactive map: Leaflet with © OpenStreetMap contributors. Seasons, rates and rules change; confirm with the campground.