Nature Park of Alvão the moist lands along the riverfront. The Olo River is rich in trout and is populated by the Eurasian otter ("Lutra lutra"). Throughout the region, bird populations are diverse and include nesting pairs of Golden eagles. Mammal populations are marked by the presence of Wild boar ("Sus scrofa"), Roe deer ("Capreolus capreolus"), European badger ("Meles meles"), Granada hare ("Lepus granatensis") and European rabbit ("Oryctolagus cuniculus"). Among reptiles in the area are the Iberian emerald lizard ("Lacerta schreiberi") and the Latastei viper ("Vipera latastei"). No less important to the region is the traditional architecture of the nature park region, especially in
River Meles no other traces with claim to antiquity was found in the area. Although Halkapınar corresponds admirably to ancient accounts, some scholars continue to doubt whether it is also the Meles of the early city of Smyrna. There is no natural cave at Halkapınar where Homer would have sat down to write, but there is one on the "Kemer – Caravan Bridge Meles", near the aqueducts in İzmir's Buca district and now known as "Kızılçullu Aqueducts", which were built by the Romans and extensively used and well preserved by their successors in the region. Because of the existence of the cave