google.com, pub-3387582883220815, DIRECT, f08c47fec0942fa0
The mules and horses that are available to ride or to (transport luggage) are found in the East corner (My Crown Gallery) of the harbour.
The rates charged for various destinations, whether to carry your bags to a hotel/house or you want a ride around town, are published on the back of the notice board (next to the bins) opposite the My Crown Gallery.
Rides around the town are a popular activity if you want a short novelty ride. The pricing causes a bit of confusion so here is a summary:
A short ride of 15 minutes round the town will cost €15 per mule (only one person on the mule!)
If there is a group of 20 or more people, the price of a 15 minute ride comes down to €10 per mule (again only one person on the mule).
All rides start with each person mounting from the steps on the corner of the My Crown Gallery (it's easier and less ... personal, than being hitched onto the mule by the muleteer!).
The town ride takes you through the back streets to the football field and back.
If you want to stay within the town and ride for a bit longer, there is a 25 minute trek which will cost you €20 that takes you up to the wells at Kala Pigadi and back.
As the saddles are the traditional wooden variety on most of the town mules/horses, to be realistic, you won't be comfortable enough to do a longer excursion.
If you do want to go further, for example up to one of the monasteries, then you should pre-book a trek with one of the horse trekking companies.
There are professional trekking companies that offer helmets, comfortable western saddles with a guide and various treks. They are not found in the harbour (and sadly the town muleteers are reluctant to give directions) so if you want to go further afield, it is best to contact them online.