I think you are looking at the wrong side of the page from the email that you mentioned. Here are the marina rates which are on the left side of the link.

We enjoyed the free day use of the other facilities when they offered that option but now marina guests have to pay $75 per person for that. The marina facilities including the marina restaurant and marina pool are free for day usage. Overnight rates are listed below.

DOCKAGE
HIGH SEASON: DEC 10 – APRIL 28
Nightly: $3.00 per foot per night
Weekly: $2.50 per foot per night
Monthly: $2.00 per foot per night

LOW SEASON: APRIL 29 – DEC 9
Nightly: $2.00 per foot per night
Weekly: $1.75 per foot per night
Monthly: $1.50 per foot per night

MOORING
Up to 60 feet: $30.00 per night
Up to 120 feet: $120.00 per night
Includes a bag of ice if paid at the Market

GARBAGE
$10.00/night will be added to dockage fees for garbage service
$5.00 per bag

UTILITIES
Electricity: $30 per day for 30 amp / $50 per day for 50 amp / $100 per day for 100 amp
Water: $0.20/gallon
Ice: $5.00/bag

*Rates are subject to change.

FUEL
Gasoline and Diesel Available
Prices subject to change

CLEANING SERVICES
Exterior: $45/hour + supplies
Interior: $40/hour + supplies