Pavane and Dan,
The older Waves all have an inspection port on each side, halfway between the aft beam and the transom. The newer Waves do not have them, but that is probably the best place to install inspection ports, because water in the hulls tends to collect at the lowest point, down in the skegs.

Also, if I don't have help to lift the bows to drain through the drain holes, it is easy for me to tilt up the bows with the beach wheels and bail/sponge out the water through the inspection ports.

It would be really annoying to not have inspection ports so you can see whether there is water in there or not.