On Saturday, June 25 at 11 a.m., the Hunterdon County Historical Society will lead a two-hour tour of the Delaware River exploring the history of Lambertville and the D&R Canal System. Guests will board a steamboat in Lambertville and learn about the river’s role in the settlement of the area and the Revolutionary-era including the 1776 crossing by George Washington that marks its 240th anniversary year. The cost to attend is $30 general admission ($25 for Hunterdon County Historical Society Members). The tour is recommended for ages 12 and older. Guests may bring their own lunch for the boat trip or dine in-town afterward. Register online at www.hunterdonhistory.org. For more information, call (908) 782-1091.