Tulu Gudo is the largest and best-known island on Lake Ziway. The boat ride across the lake is part of the pleasure, with papyrus craft, fishing activity, and birds along the way. On the island, the main draw is Maryam Tsion monastery, associated in local tradition with stories that the Ark of the Covenant was once hidden here.
Access depends on local arrangements and the monastery is not always open, so treat the visit as a lake-and-island excursion rather than a guaranteed museum stop. Even when the church is closed, the island gives Ziway a deeper identity than a simple lakeside town.