Naval Museum of the Canary Islands

Tucked inside the Naval Base of Las Palmas, this small free museum traces the Canary Islands' deep ties to the sea, from historical navigational instruments to ship models and rare archival documents. It covers the history of the Naval Zone of the Canaries from 1940 onward — niche enough to feel like a genuine find rather than a tourist box to tick. Just note the limited hours: open daily 10am–1pm but closed weekends.