Complex sentence: It is connected to Portugalete, at the other side of the firth by the Puente Colgante and offers a marina, a small beach that can unfortunately be polluted, and a monument to Evaristo Churruca, who planned and directed the canalization of the estuary.
Split into simpler sentences: It is connected to Portugalete, at the other side of the firth by the Puente Colgante. It hosts a monument to Evaristo Churruca, who planned and directed the canalization of the estuary.