Kavos isn't big on sights, unfortunately, and you'll have to get on the bus if you want a more cultural day or half-day.
If you fancy a stroll, Cape Aspro Kavos, just below the town, is good for an evening walk and on a clear day you can see across to the neighbouring island of Paxos.
Lovely Corfu Town is definitely worth a visit for its stunning Venetian architecture and the Campiello, or old town, which has a fort, a cricket green and numerous shops, bars and restaurants. There's an Archaeological Museum and a Byzantine Museum for history buffs, too.
Alternatively, spend a day wandering on the Kanoni Peninsula, five kilometres south of Corfu Town, which is scattered with ancient ruins, or get back to nature with a trip to Issos, where the sandy beach is a nesting site for endangered loggerhead turtles.