Observed arrival · 2026-10-13
SonarBuddy maps what cruising boats measure
An invite-only beta proposes turning cruisers’ depth-sounder readings into a shared map that highlights differences from seabed models.
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Cruisers navigating Pacific anchorages, passes, and reef edges
- Worth noticing
- The site shows one Lautoka passage with 33 places shallower than the model and nine spots modeled as land where the boat was afloat.
Field notes
The page describes a read-only connection to boat instruments, with logging running in the background and existing logs also accepted during the beta. It says quality checks flag spikes, poor GPS, and false echoes, and that offsets are applied so depths are measured from the waterline. The project says each passage receives a fresh anonymous ID and raw logs remain private.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
⊠LoginAccess appeared gated
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
◉HumanPersonal, local, civic, or handmade
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