Lake Houston is a forgotten place for paddlers around the Houston area. I live about one mile from a great put-in location, River Grove Park, a private neighborhood park on the lake with a boat ramp. Though, in theory, you are supposed to have a Kingwood "K" sticker on your vehicle to use the park and ramp, most cars do not have one and no one seems to check.
This is my chosen spot for quick recreational trips. Put in at the park by the boat ramp, a very easy place to get in and out of a yak or canoe with a low, easy bank. Looking out across the water, there is an island directly out from the boat ramp. Turn into the main river (San Jacinto) channel to the right. Go to the end of the island and back up the channel on the other side of it. From there, you have free paddling without worry about jet skis or ski boats. Its natural, green, and protected water, especially good if the wind is blowing.
Last two times I've been, have seen deer running through the woods, one on an island in the lake. Also see gar and carp. Spring mating season seems to attract a lot of action from those two species. And, the birds are really neat. Lots of Blue Heron's and white egrets. With a yak or canoe, you can get close if quiet.
Its not pristine. The lake is on the turbid side, but its a worthwhile recreational paddle. If, instead of crossing the main river channel to go on the back side of the island and, instead, stay in the main channel, you can paddle up to the Hwy. 59 bridge and beyond to Spring Creek, a very pleasant place to paddle, but with limited access.
Kingwood and Humble have plenty of restaurants, fast food and otherwise. Plenty of motels along 59, but this is really best as a short paddle opportunity.
From Houston, take Hwy 59 North. Exit Kingwood Drive and go to Woodland Hills. Turn right and follow your nose.