Cruise down the Petaluma River and out into San Pablo Bay aboard the Delphinus charter boat. By following the river as it meanders past sloughs, oxbows and marches, gain a better understanding of this vital link to your natural world. On San Pablo Bay it is likely that you’ll see large rafts of ducks, many godwits and willets as over wintering birds will still be present. Other highlights include a heron rookery and perhaps a curious muskrat, river otter or sea lion. For many decades, the Petaluma River was the third busiest river in California and contains much cultural, as well as natural history. You will hear about some of this history, as well as learn more about sloughs, wetlands, estuaries and rivers during this adventure.