I did it this year, cost was 200.00 paid at lock 3
Did all locks in under 8 hours
you need two people going from Lake Erie to Lake Ontario
and Three for going up from Ontario
We locked with a power boat
traffic has first right, so you wont go up with a large vessel, and they will lock you by yourself if you are the only boat
there and nothing is coming up within 30 mins.
and those are some big a$$ ship 300 plus yards long almost as wide and 80 feet high.
was 20 + in channel and two feet below deepest keel
Had great time, use boat
hooks to push away from wall, they toss lines down so you balance with hooks either way.
channel 14 on VHF
hail Welland seaway canal
and they will put you into the "Que" and hail you instructions, if you are locking through with another boat or few, they will designate a lead boat and only communicate with that boat but all other boats do as instructed.
this cuts down on traffic on channel.
Have fun was a great time.