KanduMap, an offline chart for Maldivian waters

Field notes

The page describes a route planner that works on the phone and keeps about 165 metres from charted reefs, islands and FADs, with closer passage allowed in narrow channels. Its chart draws on Sentinel-2 imagery and an estimated-depth model trained with ICESat-2 laser measurements; the site reports testing that leaves each atoll out of training in turn. It also says newer clear imagery helps reflect land changes such as reclamation.