Works with the systems your marina already runs on

Tidewater sits between your reservation system and your email marketing, and keeps both sides honest.

Dockwa

Export reservations or contracts from Dockwa and import the file directly. Each import is assigned to a property with an assignment type of slip or mooring, so a boater's record shows where they actually sit.

What comes in
Owner name, email, phone, mailing address, boat name, make, model, length and type, arrival and departure dates, nights, amount, contract group, and status.
How it's matched
Matched to an existing boater by Dockwa ID, then email, then normalized phone, then name plus boat. Anything ambiguous is flagged for review rather than guessed.
What it produces
Visit and contract history, lifetime spend and visit counts, current-year slip holder status from signed and paid contracts, and seasonal tagging by property.

Mailchimp

Pull audiences and campaign results in, push clean, consistent tags out. Whatever your team calls things inside the CRM, the export speaks one standard tag language — so segments you build in Mailchimp still work next season.

Coming in

Audience members and subscription status.

Campaign sends, opens, clicks, unsubscribes, and bounces.

Suppression state, so unsubscribed and bounced addresses stay out of every export.

Going out

An email-safe list with standardized tags:

PROP | Dutch Harbor
HIST | Seasonal Slip
ACT | 2025 | Dutch Harbor | Outdoor Storage
YEAR | 2025
BOAT | Power | 30-39 ft
REL | Current Contract

Property, history, boat, and relationship tags stay stable, while year and activity tags let you rebuild any past season's audience inside Mailchimp.

Spreadsheets and everything else

Fuel logs, storage lists, service tickets, old office spreadsheets — if it has a name and an email or a boat, it can be imported and deduplicated against what you already have. Every export is a plain CSV you own.

Bring a real export and we'll run it live

Send us a sample Dockwa or Mailchimp file before the call and we'll show you your own data inside Tidewater.

Contact our team for a demo