The undersea world of the southernmost part of Istria along Cape Kamenjak is morphologically very diverse and interesting. Many islets, coves, shallows, and various depths and types of seabed ensure a remarkable diversity of habitats and organisms. The area borders the deeper, open waters of the Northern Adriatic, so constant and strong currents provide an exchange of water masses and a constant inflow of fresh seawater. On the other side of Cape Kamenjak, the inner parts of Medulin and Pomer Bay are serene and protected areas. The shallow coastal parts of some enclosed coves are rich in fresh water sources that supply nutritive salts from the mainland, promoting the greater production of organic matter in the sea. Such environmental conditions have helped in the development of very rich and abundant undersea flora and fauna.