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The Nature Conservancy in Delaware

The sun rises over the ocean in Rehoboth Beach creating an orange reflection in the water.
Delaware Coast The sun rises over the Delaware Coast, an important ecosystem for several iconic species like red knots and horseshoe crabs. © C Louis/iStock

Our Conservation Approach

Since 1990, TNC has protected Delaware’s lands, waters and wildlife for people and nature.

Coastal Resilience

Explore how we’re building healthier, more resilient coasts by restoring wetlands and coastal habitats, reducing flood risks, improving water quality and supporting communities and wildlife.

Land Management

Explore how we protect, restore and steward Delaware’s important lands to support wildlife, strengthen ecosystems and benefit people for generations to come.

Policy & Advocacy

Explore how we work with policymakers and partners to advance solutions that protect Delaware’s lands, waters, wildlife and communities.

Freshwater

Explore how we protect and restore Delaware’s rivers, streams and wetlands, helping keep water clean, sustain wildlife and strengthen natural ecosystems.

Healthy Cities

Explore how we’re working with partners and communities to connect more people with nature while supporting healthier, more resilient places.

Prescribed Fire

Explore how we use prescribed fire to restore habitats, reduce wildfire risks and support healthy, resilient ecosystems.

Two geese fly over the bay in Delaware during golden hour.
Bombay Hook Bombay Hook National Wildlife Refuge is an important stop for migratory birds. © Bo Shen/iStock

A Year of Conservation Results in Delaware

Discover the progress we made in 2026 to protect Delaware’s lands, waters and wildlife, made possible by supporters like you.

See Your Impact

Visit Our Preserves in Delaware

Experience conservation in action at Delaware’s preserves, where you can experience some of the state’s most remarkable natural areas and connect with nature firsthand.

Discover More Places We Protect
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Volunteer Opportunities

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Upcoming Events

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Latest News & Stories

A green, brown, and white spotted butterfly sits on a cluster of small white flowers.

10 Amazing Rare Species Found in Delaware

A wood thrush sits on a bare tree branch against a green background.

Best Birding Location in Delaware

Close up view of a pile of garbage. Discarded cans, glass bottles and plastic milk jugs and soda bottles are scattered across a thick pile of sticks, logs and broken wood.

Eight Ways to Reduce Waste

The sun sets over the Delaware Bay creating an orange reflection in the water.

Delaware’s Coastal Resilience Roadmap

A group of horseshoe crabs pile on top of each other.

Horseshoe Crabs in the Delaware Bay

View More
A staff photo of TNC PADE staff members standing in rows outside of Hauser Nature Cetner.
Our Staff Meet the people making a difference for people and nature in Pennsylvania and Delaware. © The Nature Conservancy

The People Behind the Work

Meet our team of scientists, conservationists and advocates united by a shared passion for protecting nature and advancing conservation in Delaware.

Meet the Team
The sunsets over the Delaware Bay.
The Delaware Bayshore Rich in tradition and natural beauty, the Delaware Bayshore holds a proud history of families living, working and recreating along the coast. © Deb Felmey