We went on a Fun Train trip from the Atlantica Kalliston hotel (Nea Kydonia) almost by accident as Thomson (TUI) did the dirty on us and cancelled an excursion last minute the night before. The train isn't so well advertised at this end of the line. To find it, step out of the Kalliston and turn right and walk for 5-10 minutes down the road. You can book tickets in the Golden Wheel car-rental store on the other side. The guy there will call the train company and make sure they pick you up.
The Pleasures of Crete was a great choice. Half the enjoyment is the novelty of being on the "train", rattling along quite close to the road, with a cooling breeze. It makes you feel much closer to the surroundings than you would in an air-conditioned coach. As detailed by other reviewers, this trip takes in viewpoints, a monastery, a small village and an olive-oil processing facility. But as well as all this itinerary you get a scenic trip away from the coast up into the hills.
A great half-day out but can be a bit of a bone-shaker in places. However, the driver always slows down when there are any serious pot-holes or cracks in the road. We paid 17 euros a head for the trip which we didn't think unreasonable and was much cheaper than full-on coach based excursions.
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