PHOTOS: Governor John Carney takes Lewes Canal Eco Tour

Captain Steve Cardano, Tour Guide, talks about oysters aboard the Cape Water Taxi Eco Tour on Wednesday, Sept. 27, 2017.

Cape Water Taxi host weekly ECO Guided Tour down the Lewes Canal where riders learn about history and wildlife on Wednesday, Sept 27, 2017.

David Green, Owner/Operator of Cape Water Taxi Eco Tour, guides a group on Wednesday, Sept. 27, 2017.

Governor John Carney looks at local wildlife from aboard the Cape Water Taxi down the Lewes Canal on Wednesday, Sept. 27, 2017.

Captain Steve Cardano, Tour Guide, talks about crab aboard the Cape Water Taxi Eco Tour on Wednesday, Sept. 27, 2017.

Kara Coats, Deputy Secretary- DNREC, and Governor John Carney look at wildlife along the shore during the Cape Water Taxi Eco Tour on Wednesday, Sept. 27, 2017.

Gov. John Carney looks at local wildlife from aboard the Cape Water Taxi down the Lewes Canal on Wednesday, Sept. 27, 2017.

A view of the Delaware WWII towers could be seen from the Lewes Canal during the Cape Water Taxi Eco Tour on Wednesday, Sept. 27, 2017.

A blue heron was seen along the Lewes Canal during the Cape Water Taxi Eco Tour on Wednesday, Sept. 27, 2017

Captain Steve Cardano, Tour Guide, talks about crab aboard the Cape Water Taxi Eco Tour on Wednesday, Sept. 27, 2017.

Letter from Rehoboth Beach resident expresses concern about clean waterways and drinking water in Sussex County.