Entry & Exit Formalities
The main nearby Mozambique border crossing is at Cóbuè, a short 7km ride over the water to the southeast. On Likoma, there's an Immigration Office to stamp you out of Malawi in Mdamba, next to where the dhows depart from.
In the market by the cathedral in Cóbuè there's an Immigration Office for your entry/exit formalities. Right beside the office are the boatmen.