Grassy Point Trail is a 10.2-mile trip, one way to Diamondhead from Pass Christian through the open water in the St. Louis Bay surrounded by saltwater marsh. Leaving from Necaise Boat Launch on the Wolf River, travel northeast to DeLisle Bayou and out to St. Louis Bay. Once in the bay, this trail meanders along the marshes of northern St. Louis Bay. End the long paddle at the marina restaurant in Diamondhead where you may enjoy refreshments, lunch or dinner and see the beautiful view of St. Louis Bay from the decks.