Marisa RiverMarisa River is a river in the province of Gorontalo, island of Sulawesi, Indonesia, about 1800 km northeast of the capital Jakarta.GeographyThe river flows in the northern area of Sulawesi island with predominantly tropical rainforest climate. The annual average temperature in the area is 23 °C. The warmest month is October, when the average temperature is around 26 °C, and the coldest is February, at 21 °C. The average annual rainfall is 2133 mm. The wettest month is July, with an average of 270 mm rainfall, and the driest is September, with 53 mm rainfall.