Through May 30, “Discoveries from the Mardi Gras Shipwreck” will be on display in a free exhibit at the Chalmette Battlefield of Jean Lafitte National Historical Park and Preserve, 8606 W. St. Bernard Highway, Chalmette.

In the early 1800s, a ship sank 40 miles off Louisiana’s coast in 4,000 feet of water. When it was discovered in 2001, it was dubbed the “Mardi Gras shipwreck” by an oilfield inspection crew using remote observation vehicles to survey for a new natural gas pipeline named Mardi Gras.

The ship was later identified as the privateer vessel Rapid, which set sail in 1813 and capsized during a storm.

Artifacts on display include a spyglass, cannonballs, nautical supplies and everyday items such as bottles, plates and silverware.

For information, call (504) 281-0510 or visit www.nps.gov/jela.

WETLANDS WALK: Rangers guide free walks through the Louisiana swamp and marsh at 10 a.m. Wednesday through Sunday at the Barataria Preserve of Jean Lafitte National Historical Park and Preserve, 6588 Barataria Blvd., Marrero. For information, call (504) 689-3690, ext. 10, or visit www.nps.gov/jela.

NATURE EDUCATION: Rangers give free talks on topics of their choosing — nature, human history, fascinating critters or emerging ecological challenges — at 2 p.m. Wednesday through Sunday at the Barataria Preserve of Jean Lafitte National Historical Park and Preserve, 6588 Barataria Blvd., Marrero.

For information, call (504) 689-3690, ext. 10, or visit www.nps.gov/jela.

GULF COAST MEMORIES: The “I Remember” presentation of photographs, paintings and oral histories relating to Louisiana’s Gulf Coast and wetlands will be open through June 28 at the Barataria Preserve of Jean Lafitte National Historical Park and Preserve, 6588 Barataria Blvd., Marrero. The free exhibit is presented by the Coastal Wetlands Planning, Protection and Restoration Act Public Outreach Committee. It is open from 9:30 a.m. to 4:30 p.m. Wednesday through Sunday.

For information, call (504) 689-3690, ext. 10, or visit www.nps.gov/jela.

BATTLE OF NEW ORLEANS: Rangers will give free talks on the 1815 Battle of New Orleans at 12:15 p.m. Tuesday through Saturday at the Chalmette Battlefield of Jean Lafitte National Historical Park and Preserve, 8606 W. St. Bernard Highway, Chalmette.

For information, call (504) 281-0510 or visit www.nps.gov/jela.