This is very sage advice regarding a Float Plan.
This site offers a lot of very entertaining information - but this stuff right here can save your live.
As an Ex-USCG Search & Rescue human - I spent almost 30 years either on the water conducting the search for lost / overdue boaters or back in the Operations center collecting information and planning the actual search for the units (boats cutters and aircraft).
Every trip you make, someone should know the who, what, where, when and how about your trip. This includes the following ;
Where you're going - so we know where to look if you don't get home.
Who is one the boat - names, ages and physical description - so we know who we are looking for and when to stop searching if victims are located unconscious / unresponsive.
When you're coming back.
What boat ramp you use and a description of your vehicle and trailer.
What marina you use and where you get gas.
A description of your vessel including length, color, make, model and type and gas tank capacity. Some supplements info such as if you have food / water on board, if you usually fish at night, if you're familiar with the water you're fishing, if you have warm clothing on board, and if anyone on board has any medical or health issues ( such as running out if medicine) helps too.
If you routinely fish the same water, the same way and with the same person or people, you can collect all this info and put it in a folder and leave it with whoever, your wife, husband, brother sister, parent - it doesn't matter, just whoever it is that will be calling me to report you missing. Then, if the case arises, they just grab the info (with the emergency numbers written on the front of the folder) and make the call. Your loved one may not know what info they will need, but the people looking for you will be very happy that you did this in advance.
Late boaters, called overdues, are one of the most challenging cases we prosecuted. Often times boaters are located and they ore OK, as the bite was on and they chose to stay out. That's OK at least they're safe. Other times, if no float plan is left, by the time we find out they are missing, several hours even days have past and that really makes matters worse. Cell phones although convenient are often not reliable. I would not bet my life on them. In places where a marine radio is used, that's really the way to go.
Insuring that you have the required safety gear (before you actually need it) is a no brainer.
PFD's, flares (check the expiration date), fire extinguisher, and a sound producing device (if required) can mean the difference being able to tell the story later and not.
This is a good time of year to review all this stuff and to have a plan before you need it, so that when you do, you have a reasonable expectation that those who might be looking for you are provided the absolutely best chance to find you, because we really want to.
Stay Safe
A-Jay