Go to this link and click on #7 to go to the Delaware Bay area:
http://www.saltwatertides.com/dynamic.dir/newjerseysites.html
For canoe trip in the nontidal Upper Maurice River:
USGS Maurice River Station
Real time flow data from the USGS’s Maurice River station at Norma, NJ. You may wish to browse the USGS site further, as it has extensive information on the earth’s happenings. (https://waterdata.usgs.gov/nj/nwis/uv?01411500)