Narwhal summarizes the dives you’ve logged in the app and calculates the number of unique dive sites you’ve dived at.

Dives sites are pinned using the map view when adding or editing a dive, which produces a set of longitude and latitude coordinates. You may also provide a location name to the dive site pinned (i.e. “Horseshoe Reef”).

Narwhal tallies the number of unique dive sites by location name, omitting any that have only coordinates, to avoid double counting dive sites that are meant to be the same location but have coordinates that do not match exactly. Conversely, this allows you to specify unique dive sites when they are close together geographically.

The screenshot above shows two dives logged: Dive #1 has no location name and displays only its coordinates, Dive #2 has a location name. The dive sites summary shows only 1 unique dive site, as the coordinate-only dive may or may not be at the same dive site as the one specified in Dive #2.

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