Hi Keiley, there are a variety of excursions you could try with you daughter. The first one I thought of though given it will be warm is the water park (Aqua Dream), this has a great area for young children to play and stay cool. As you mentioned she has already been on boat trips so they are fine, but we also do an
ICR exclusive trip to Akyaka which involes travelling to the resort by jeep and then travelling down the river by boat and also having time to spend on the beach (no chance for her to get bored and plenty to see). The dolphin encounter in
Marmaris she would love, because of her age she would not be able to go in the water with the dolphins, but she would be allowed to go to the waters edge accompanied by an adult so she could touch / pet the dolphins or she could just watch. The Dolphin encounter takes place at a therapy centre located between
Icmeler and Marmaris and is out to sea. The likes of Pammukkale or Ephesus I think would be hard work for a child aged 3 as they are long journey on a bus, it's lovely when you get to the destination but I think the journey would be too much for a young child unless they slept and it's a long day.