Tomorrow is The Waterfront Alliance's City of Water Day! And, as The Broadsheet puts it, there's lots to "sea and do".

The event takes place at a few locations - but if you don't want to stray too far from home, Pier 25, 26, and 40 may have just what you're looking for:

Via The Broadsheet: "At Pier 25 (in the Tribeca section of the Hudson River Park, near North Moore Street), the Lilac Preservation Project will host an arts festival, as well as classes in teaching knots like a sailor, from 1:00 to 8:00 pm. Lilac staff will also offer tours of the 1933 steam-powered former Coast Guard lighthouse tender.

Also on Pier 25 (from noon to 4:00 pm), the Hudson River Park Trust will provide rods, reels, bait, and instruction for fishing in the river. Aside from angling, the program will also offer a first-hand opportunity to learn, through hands-on activities, about river ecology and the many fish species found in area waters.

On Pier 26 (also in the Hudson River Park, near Hubert Street), the Downtown Boathouse will offer free kayaking from 9:00 am to 6:00 pm.

At Pier 40 (in the Hudson River Park, near Houston Street), the River Project's WetLab will shed light (from 11:00 am to 5:00 pm) on some of the river's tiniest residents: local plankton will be on view through microscopes. Also on tap: tours of the River Project's 3,000 gallon "estuarium" and explore the touch tanks, which display live samples of many of the local estuary's aquatic species.

Rejoice in your river fun!

More information on The Waterfront Alliance's site.