The Gal Oya Valley project is Sri Lanka’s first big irrigation endeavor following independence. Senanayake Samudra, the largest reservoir in the nation, which is regarded as the Gal Oya National Park’s defining characteristic, was constructed inside. Gal Oya National Park holds the distinction of being the only national park in the nation that offers boat safaris as an additional activity. One of the most exciting parts of the boat safari is seeing elephants swim across the lake. If the park’s beautiful highland forests, leopards, water buffalo, wild boar, crocodiles, and other deer species haven’t already won you over, that is.