The old port and the new port in Mykonos are located near each other, and they are easily accessible on foot.
The old port is located in the heart of the town, near the main square and the shops and restaurants.
The new port is located about 1.5 kilometers east of the old port, and it is where the ferry and hydrofoil boats arrive and depart.
To get from the old port to the new port, you can walk along the waterfront, which takes about 20 minutes. You can also take a taxi or a local bus to get there, which takes about 5 minutes.