The McDonald's Boat Launch on Sea Island is used a lot.
On the very lowest tides boats are launched even though the water is shallow.
Lots of parking.
$12 per launch. Pay machine.
Use the south side of the dock as the pavement is longer than the launch on the northside.
I'd recommend ya take your time going down river to Georgia Straight ( & return up river to the launch )
There can be lots of debris & logs in the river but also some deadheads many of which can be under the surface by a foot or two.
Just a few wks ago a female RCMP officer was at the launch ( 4x4 RCMP veicle ) & she mentioned to me that a boat hit "something" big & two on board hit into the windshield area. Hull was cracked.
If ya are in this river try to stay in the middle.
At the mouth go past the lighthouse then cut at a 45 degree angle in a NW direction.
Steering too soon to starboard when going out ya will be in very very shallow water ( sandbar )
Good advice also is: " Go out on days that has a high tide with little change."
The mouth of the North Fraser or any mouth of a river can be very dangerous in tide changes esp. in a 16 ft boat that ya own.
Also if winds pick up entering or exiting the river can also be risky & being out in the salt waves can get big.
Wear your PFD & have a radio or cell & incase yous need help.
We've turned back 2-3 x at the mouth as the waves were too big & with white caps.
Saying that we have gone out 25-30 x or so from McDonald Beach & up to Horse Shoe Bay ( Howe Sound ) & also Kits Stanley Park & West Van.
High tide days ,low winds, & navigate in the middle of the river at a lower speed & ya should be fine.
Lots of parking as mentioned !!!