Wherever you see underlined text, it is a link to the respective Google Maps location.
I've also added intonations to the location titles, to help you pronounce them better (this tends to make communication easier when you talk with locals).

Horto - Milina

Two relatively small villages, Milina being a little larger than the two, with lots of natural beauty. Both have recovered from 2023's "Daniel" storm and are definitely worth a visit. In Milina you'll find lots of cafes and restaurants and places to visit, especially during the summer months. Off-season, however, it does retain enough of a life as well.

Trikeri - Agia Kyriaki - Alogoporos

The southern end of Pelion. A picturesque village (or two, depending on how you count them). During the summer months they attract just enough tourism, due to the combination of natural beauty with peace and quiet.

Trikeri island

To reach the island you need to go down to Alogoporos and call for a mini boat to come and pick you up. There is no regular service between the mainland and the island.

On the island there's lots of picturesque settings to visit, some nice small taverns and of course the Monastery of Evangelistria, which attracts lots of people during its festival in the summer.

Beaches

Elia beach

A small clean cobbled beach with a café and a small parking space.

Hondri Ámmos beach

A quiet beach with deep waters that doesn't get affected much by the Aegean winds.

Koufála beach

You park on the main road, take your stuff (there's no shops there) and you find yourselves a nice olive tree to set camp under. The waters get deep a little fast but they're very clean (they also have sea urchins). This is a cobbled beach.

Tzásteni beach

A small but famous and very picturesque beach. The shots of the buildings on the far side of the beach are very famous. You leave your car on the main road, you go down a relatively easy footpath and you set up your things. There's no kind of organisation there, but it's one very beautiful place to be.

Agía Váso beach

A quiet beach with lots of trees, easy access (asphalt) and crystal-clear waters.

Alogóporos beach - Theriákondas beach

Two very clean beaches. In Alogóporos you'll also find a café-restaurant plus ample parking space.