One proposal for the Fort Point area anchors around letting the site flood completely and creating a city built over water.

The ”RE/creation District,” a plan that took aim at trying to figure out how residents in Fort Point could live with flooding, envisions floating pedestrian walkways and a public piazza on an island.

One project envisions an urban waterfront with pedestrian walkways and a park pointing toward a floating garden bridge.

One group suggested floating water gardens in the Fort Point Channel  for residents to explore by canoe or kayak.

A project dubbed “The Boston’s Mangrove” describes a new area “where natural elements and human artifacts marry to ensure a better quality of life and a coexistence. . . between ecosystem and cities.”

One Fort Point area project proposes allowing water to penetrate to the interior of the district.

In 100 years, when rising sea levels are expected to spill over onto flood-prone Morrissey Boulevard, commuters may be able to ditch their cars in favor of an MBTA water taxi.