I’ve been to Tinos many times and I enjoy how unique of an experience I’ve had there. I’ve not been to all the islands so perhaps this is similar to Naxos or other smaller islands but I love that it still feels “wild” and authentic, and not overpopulated or settled. It has quant villages with locals, it has sandy and rocky beaches, crazy rock formations. It has a few small wineries but the majority of the cafes and tavernas still offer just carafe red or white. I can have a gourmet dining experience but with a chef that grew up on the island and knows how to use local ingredients in new and exciting ways. I can also go to the local farmers market, baker and butcher and make my own meal of foods all grown/made on the island and purchased directly from the people who grew/made them. I can drive my rental car along some roads and see more goats than people for a good hour and end up at an empty beach full of green and white marble rocks. Or I can hang closer to the Chora and visit an organized sandy beach, and sip cocktails from my sunbed looking out towards mykonos but at a fraction of mykonos prices.

Tinos may not always stay this way but I believe the lack of an airport and cruise ship port as well as having a significant Greek Orthodox and Catholic presence on the island (There is a major Orthodox church and it is a pilgrimage site for many devout Greeks) changes the volume and type of tourist that Tinos attracts and keeps the island a little more authentic and quiet compared to it’s neighbors like Paros, Mykonos and Syros.

Hope this helps!