Connect with your inner culture vulture at Bouboulinas Museum. Check if any guided tours are available or ask museum staff for tips on some collection highlights.
You'll have sightseeing choices galore in Spetses. Bouboulina's Museum is an ideal place to start here, but there are plenty of other worthy sights to visit. Spetses Beach, Museum Bouboulina Laskarina, and Ermionida Marina are close to the museum and will fill in your day nicely.