Adriatic, Tyrrhenian and Ionian now, the whole Mediterranean in 2027 ↓

One first mate per boat, one desk for the fleet

Booking codes, guest walkthroughs, technician visits and incident threads for the whole fleet, with an overview every morning. Free for bases.

iOS and Android. Crew join on the web.
9:41
Starboard hull at the dock during check-in
Check-in · Stardust
Zone 4 of 9
Evidence
38
Photos, timed and positioned
Zones9 of 9
Findings1 · gelcoat
SignaturesSigned 16:42
Before the week · bookings & codes

The week list becomes booking codes

Import your boats and the week’s bookings from MMK, NauSYS or Excel. Each booking gets a one-time code the captain enters in the app; the QR sticker on the boat only identifies the boat.

Importdry run first · nothing created until you confirm
Code8 characters · one use · read out at check-in
Boat QRidentity and app download · never access
Claimedyou see which captain linked the week
Mermaid Base
base.mermaid.navy/activations
Bookings & codes
week-25.xlsx · MMK export
Dry run, nothing created yet
5 rows
BoatWeekCaptainResult
Stardust13–20 JunPetra Siebelready
Luna13–20 JunMarkus Rothready
Bura13–20 JunAnna Brandtready
Galeb13–20 JunJan Winkleralready exists
Vila13–20 JunLea Hoffmannready
Duplicates are skipped; the same file again creates nothing new.
9:41
Check-in

Stardust

6/9 sections
Hull & deckAll OK
Engine & bilgeAll OK
Galley1 noted
HeadsNot attested
Safety equipmentAll OK
Sails & riggingNot attested
Photos7
Handovers · Sat
StardustPetra Siebel · 1 issue
guest walkthrough
LunaMarkus Roth · all OK
ready for handover · 12 min
BuraAnna Brandt · 2 issues · Marko
technician assigned
VilaJan Winkler · all OK
awaiting signature
GalebLea Hoffmann · 1 issue
signed 15:58
Saturday 14:00 · guest walkthrough

The captain walks the boat; only the exceptions reach you

Each section is all OK or an exception with photos and severity. When the captain hands the walkthrough over, the boat is in your queue as ready for handover.

Templateper boat model · your wording · pinned at start
SeverityCosmetic · Needs attention · Serious
Correctionsreturn the walkthrough with a reason
Captain onlycrew see it read-only
Saturday 16:30 · technician visit

Every exception resolved, then one signature

The technician opens the visit from My work, marks each issue fixed, accepted as-is or deferred, writes the visit summary and requests the signature. The captain signs on his own phone; the signed handover carries a record fingerprint.

My workassigned to me · handover visits · unassigned queue
On the phoneinstalled from the browser · alerts reach the installed app
Signaturepassword, then the pad · captain only
Recordsnapshot · checklist hash · signed handover PDF
Technician · Mermaid Base on the phone
9:41
Mermaid BaseMarko · Technician

My work

Assigned to me · 1
LunaUrgent
Fridge not cooling
In progress · 09:12
Handover visits · 1
Unassigned queue · 0
Every open request has an owner.
My work
Incidents
Handovers
Parts
Captain · Mermaid app
9:41
Check-in · Stardust

Technician on the way

Marko has your two exceptions. Nothing to do until the signature request arrives.

Walkthrough handed to the base16:12
Technician visit16:30
Captain signature–
Tuesday 09:10 · at anchor, Vis

Every report has a boat, an owner and a reply time

The captain reports from the app: category, how serious, is the boat operable. You set the priority, take it, and the app tells the captain when to expect a reply. Their screen follows every step.

Safety firstemergency phone + VHF 16 shown before a safety report
Prioritysafety critical · urgent · before turnaround · routine
Also in the queuephone, WhatsApp and walk-in reports you log
Partsneeded · ordered · received · installed
Boat support · Lunacaptain’s app
Fridge not coolingSent
Electrical · Needs attention · boat operable · 1 photo · 09:08
Reply expectedwaiting for the base
Handled bybase team
Mermaid Base
base.mermaid.navy/incidents
Incidents
Open · 7Assigned to meSafety only
Luna · Fridge not coolingReported as: Needs attentionUntriagedNew
Electrical · boat operable · Reported from 43.06° N 16.18° E · 09:10
Triage
set a priority to promise a reply time
Conversation with the crew
Markus Roth · 09:10
Fridge stopped overnight, everything is warm. Breaker is on, compressor silent.
Reply to the crew…
Internal notes
Compressor relay likely. Danfoss stock in the Vis store?
Staff only. The crew never sees these.
Parts neededCompressor start relay · Danfoss 117-7Needed → ordered
Previous incidents on this boatLuna · 2 in 90 days · shore power (May), windlass switch (Jun)
Mermaid Base
base.mermaid.navy/overview
Overview
Computed at 07:58
7
Open incidents
1
Overdue
2
Unassigned
1
Waiting on guest
22 min
First reply · 7 d median
Returning this week with open items
BoatReturnsOpenNext deadlineOwner
LunaSat 09:001Tue 10:10Marko
GalebSat 09:001Fri 18:00–
BuraSat 09:002Wed 12:00Ivana
Repeat offenders (90 d)
Bura · 3Galeb · 2
By category (30 d)
Electrical
6
Plumbing
4
Engine
3
Hull & deck damage
2
Alerts
Alerts on this deviceOn
Email alertsOn
Every morning · the overview

What is open, what is late, who owns it

The overview shows what is open, overdue, unassigned or waiting on the guest, which boats return this week with open items, and which boats keep coming back with faults. Alerts reach the phones you choose. After hours, only safety alerts go out, to whoever is on call.

Reply targetsthe app tells the crew “the base typically replies by …”
First replymedian · 7 and 30 days
Boat historyhandovers, visits and incidents per boat
Alertspush + email · per device · on-call after hours
Friday · before the return

You know what is coming back on Saturday

48 to 24 hours before return the captain gets the pre-checkout prompt. You get a return-readiness queue: open reports, parts, planned visits, new defects. Check-out pairs each section with the signed check-in; the signed handover PDF is ready for the booking file; write-back into MMK comes in Q4 2026.

Mid-weekequipment pulse to the captain
48–24 hpre-checkout report · frozen on submit
Check-outpaired with check-in · new exceptions only
Booking systemsigned PDF now · MMK write-back Q4 2026
3
Return readiness · Fri 19 Jun
Returning Saturday
LunaSat 09:00
fridge relay installed Tue · 0 open
ready
GalebSat 09:00
winch handle lost · part needed
1 open
BuraSat 09:00
pre-checkout report Thu 18:10 · shower pump
1 new defect
Check-out · Sat 20 Jun 08:40
Stardust · Petra Siebel
Sections9 paired with check-in
New exceptions1 · rub rail, port bow · photo pair 12
Signed handoverPetra Siebel · 08:52
BookingPDF ready for MMK
Setup · half a day

Staff, rules and templates, set once

Invite staff by email with two-factor sign-in. Set the support hours, reply targets and emergency contact the crew sees. Write the walkthrough per boat model.

Staff & access
Three roles
Managereverything
Technicianmy work · incidents · handovers · parts
Fleet contentboats · templates
Sign-ininvite-only · password + TOTP
Support settings
What the crew is promised
Hoursevery day · 08:00–20:00
Reply targetssafety 15 min · urgent 60 min · routine 24 h
Emergency+385 21 ··· 418 · VHF 17
After hourscrew sees “base team offline until 08:00”
Check-in templates
Per boat model
Lagoon 42model template
Other modelscompany default
Nothing setsystem default
Versionspinned when check-in starts
Data
Yours, in the EU
HostingGoogle Cloud · EU
Isolationeach base sees only its own fleet
Retentionincidents 24 months · signed handovers 3 years
Positionlast known only · captain opt-in · every read audited
Pilot · one base · one season

Free for your base

Tell us about your base and we will send the details.

Basesfree
Skippers & crewsfree · crew needs no install
Your dataEU-hosted · yours · exportable
CoverageCroatia · Slovenia · Italy with the Tyrrhenian coast and Sicily · Bosnia and Herzegovina · Montenegro · Albania · Ionian Greece · whole Mediterranean in 2027
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