On my Google Earth the map reference works better with a comma, 35 26 28 N, 23 53 13 E If I copy and paste with the "-" it seems to find somewhere in Mexico.
Go out of Chania on the Omalos road. About 10 km from the National Highway turn right into Alikianos. At the supermarket/ cooperative bank of Chania turn right again. Follow this road, keeping to the left at the first fork, for 2 to 3 km and you get to Vatolakkos. I think various roads out of Vatolakkos will take you to different views of the dam. Just explore. I'm told that there are a lot of nice walks in the area. A friend frequently walks his dogs there.
If it ever burst after it has been filled, e.g. due to an earthquake, it's going to be a bit damp in the village of Vatolakkos and I'm not sure that Koufos and Alikianos would be fun places to be. Bit of a bummer when you deliberately choose to live well away from any significant body of water and then they bring the water to you.
For more geekiness, I believe that the water in the dam is being provided by the kind folks of Meskala, who presumably have more than they need? A pipeline has already been laid from Meskala to the dam. Although it has to cross two sets of hills to get to the dam, Meskala ( 35°24'26.53"N, 23°57'24.84"E) is sufficiently higher than the dam for the water to flow uphill due to hydrostatic pressure, i.e. without pumping.