Sea levels rose another 4.5 mm this year. We're proud of everyone involved. Keep it going
Habitat expansion is habitat conservation

The ocean is growing. Let it.

For too long, marine life has been confined to a meager 71% of the planet. We're a coalition of concerned scientists fighting for the largest habitat expansion project in Earth's history.

71%of Earth's surface is ocean. Unacceptable.
4.5 mmof new habitat delivered this year
0fish who have complained about flooding
1,200+parking garages identified as future reefs
Our mission

Every coastline is a frontier.

We believe every fish, dolphin and loggerhead deserves room to grow.

Founded in Charleston, where the tide already visits downtown on a regular basis, MBSLR advocates for policies, partnerships and public awareness that help the ocean reclaim its rightful square footage.

Land dwellers have hoarded beachfront property for centuries. We're simply asking them to share.

"Every king tide on the Battery is a new neighborhood opening up. We're not flooding Charleston. We're expanding it."
Executive Director, MBSLR Charleston
Our programs

Turning dry land into prime habitat

From the Ravenel to Rainbow Row, our programs prepare the Lowcountry for its aquatic future.

Adopt a Parking Garage

Concrete structures make excellent artificial reefs. We match underused garages with grateful oyster colonies. Free parking for crabs, forever.

Adopt a level

Rainbow Reef Initiative

Historic preservation meets marine habitat. Our long term vision converts Charleston's most photographed row of houses into the most colorful reef on the East Coast.

Read the plan

Turtle Turf Expansion

Sea turtles have waited 100 million years for more nesting options. Our outreach team is identifying Folly Beach rentals that will make ideal turtle real estate by 2080.

Meet the turtles
Stories from the field

Hear from the communities we serve

"My grandmother never got to see the inside of a grocery store. Thanks to MBSLR, my kids might."

ShellyLoggerhead, Folly Beach

"Used to be I could only swim up the Ashley so far. Now I commute straight to King Street. Game changer."

DougBottlenose dolphin, Ashley River

"Realtors call it a flood zone. I call it beachfront with no HOA. Very grateful."

GeraldBlue crab, Shem Creek
Take action

The tide won't turn itself.

Join thousands of supporters (mostly fish) making their voices heard.

1
Leave your car running in the driveway. Every idle minute counts.
2
Write your representative and ask them to rezone your neighborhood as "intertidal."
3
Introduce yourself to the oysters moving in next door. They'll be there a while.

Join the movement

Get rising tide alerts and habitat updates.

Enter your name and a valid email first.

Welcome aboard.

The ocean thanks you.

Latest news

From the newsroom

November 2026

King tide visits the Battery, stays for brunch

Record crowds of mullet were reported along Murray Boulevard during this month's celebration.

October 2026

MBSLR applauds drainage project delays

"Every delayed tunnel is a win for habitat connectivity," said our policy team in a statement.

September 2026

Rainbow Reef Initiative enters scoping phase

Public comment is open. Please submit comments in writing, or by bubble.