Üçağız is sometimes sorted under Kekova Island.
Üçağız may serve primarily as little but a stop on your way to the village of Kale, but Üçağız has done quite a few things to provide services for travellers as well.
The setting of Üçağız is very nice, with several islands in the horizon and the village itself as a few picturesque quarters. If you're one of those who never get tired of archaeology, there are some sarcophagi to the east of the village, ruins of ancient Theimussa.

Practicalities
There are several simple hotels in Üçağız, and their advantage is that they are correctly priced, which is not the case with Kale's hotels. All come with restaurants, which also offer generous servings at friendly prices.

Interesting nearby
From Üçağız, boat trips can be arranged to more destinations than Kale, like Kekova Island and the ruins of Aperlae.