One framework · every craft
Water taxi
Charter
Yacht
Sailing
RIB tours
Jet ski
Rentals
Ferry
FreightBook a water taxi, rent a boat, charter a day out — on one honest map with upfront prices. Poseidon is the platform; Harbor is the app. Operators keep more, riders pay less.
No app-store wait — join the pilot in Stockholm, Helsinki & Oslo.
Water taxiCharterYachtSailingRIB toursJet skiRentalsFerryFreightEvery trip is drawn on the actual water, priced upfront, and paid on rails that don't skim. The hard parts, solved once, for everyone.
Every journey is a real water route that never crosses land — threading narrows and archipelagos like a captain would. The map is the product.
Local instant rails — Swish, Vipps, MobilePay — instead of expensive card networks. Cheap payouts straight to an operator's bank, so the common skipper earns.
Open code, open data, declarative plugins. Add a vessel, a region, or a whole new service from data — no rewrite. Owned by the community it serves.
Insurance woven into every booking, a shared safety record, and a digital logbook — so trust isn't a leap of faith.
Speaks the marine languages already in use — Signal K, DCSA, MAVLink, VDA 5050 — through adapters. We connect the ecosystem, not reinvent it.
Riders, captains, charters, fleets, divers, freight — even crew looking for work. One declarative framework serves every persona on the water.
From "where to?" to on the water — in three taps.
Drop a pickup and a destination. Poseidon snaps to the nearest docks and charts the water path between them.
The exact route draws on the chart with an honest, upfront fare — no surprises, no surge games.
Tap to book, pay on a local rail in a second, and meet your captain at the pier.
Get where you're going by water — or just go out for the day.
Put your boat to work. Free to list, you set the price, paid to your bank.