Jackson Day, the missing kayaker that prompted a Coast Guard search, has been located, according to the U.S. Coast Guard.

He was paddling back to Swans Island this morning from a night on a nearby island. Day, who is a resident of Rockport, summers on Swans Island.

He left yesterday morning for a recreational paddle, and last night, when the seas picked up, he went to an island and sheltered over night, the Coast Guard said.

He spent the night on Round Island, near the northern edge of Mackerel Cove on Swans Island.

According to the Coast Guard, when crews were notified by a good Samaritan, a 47-foot Motor Life boat crew from Coast Guard Station Southwest Harbor launched and escorted the kayaker, 18-year-old ashore.

There, he was met by officials from Hancock County Police Department who reported he was in good condition after spending the night on Round Island, approximately one mile west of his departure point.

Day was initially reported missing Tuesday evening by his mother after he failed to return from his kayak trip. The Coast Guard searched throughout the night using two 47-foot Motor Lifeboat crews from Coast Guard Station Southwest Harbor, and an aircrew from Air Station Cape Cod. They were joined by the Maine Marine Patrol, local harbormasters, and several good Samaritans.

Day said the winds picked up when he got to the islands Tuesday, so he paddled to Round Island where he spent the night. On Wednesday morning, he began paddling back to Swan's Island.

"This is a very favorable outcome considering all of the circumstances," said Capt. Michael Baroody, commander, Coast Guard Sector Northern New England, in a news release. "The low visibility, gusting winds, and the lack of information on his whereabouts made this case incredibly difficult. Furthermore, he was discovered without a lifejacket."

He said Day is incredibly fortunate to be alive, and that the ocean is generally an unforgiving environment where lack of preparation and means of communication can lead to disastrous outcomes.

The air temperature dipped to 57 degrees Tuesday night with the water temperature below 60.

The Coast Guard strongly recommends mariners check the weather forecast and file a float plan before embarking on a voyage. During the voyage, life jackets should be worn and not stowed, and the vessel should have a reliable means of communication such as a VHF radio. Small craft like kayaks and canoes should be marked with contact information in the event they are found adrift.

Aug. 12, 8 a.m.

The Coast Guard is searching for an overdue kayaker near Swan's Island, Tuesday, Aug. 11. Missing is 18-year-old Jackson Day, who was last seen Tuesday at 10 a.m. in an 8-foot yellow kayak at Swan's Island Ferry Terminal.

The Coast Guard Sector Northern New England Command Center in Portland received a call shortly before 8 p.m. from Day's mother, who said he was overdue from his trip.

He was reported to be wearing a hooded sweatshirt and shorts. He is about six feet tall, 160 pounds with short dark blond hair and blue eyes.

Swans Island lies between Isle au Haut and Mt. Desert.

Multiple authorities have joined the search including two 47-foot Motor Lifeboat crews from Coast Guard Station Southwest Harbor, an MH-60 Jayhawk Helicopter rescue crew from Air Station Cape Cod, Massachusetts, the local Sheriff's department, and the Maine Marine Patrol.

Anyone with information about Day's whereabouts is urged to call the Sector Northern New England Command Center at 207-767-0303.