Hi, I work at Universal out here in CA- so I have a lot of experience to pass on about restraints!!! This advice actually applys to anyone, but especially if you have a small child. The restraints that are the most tricky with children are the straight lap bars. The lap bars come down across the whole seat- so they only go down as far as the largest person in the row. This can create a lot of space between the child and the lap bar- causing the child to slide around. Also another problem is height...the height issue is kind of tricky. The problem with all of the height markers is they take into account the Childs over all height. Some people have their height in the waist, some in their legs...A child may make the height requirment- but end up sitting kind of low, causing the lap bar to be at their chin or nose level. If there is too much of a gap or the child is low in the seat- then you should really be careful and think twice before riding. Also be careful of the overhead restraints for the same reason- too much of a gap= bumping around. I would think that rides like splash mt. should be fine. SM doesn't have a restraint, so no problems with bumping. I doubt that falling out of the log would even be an issue. The main peice of advice, is to make sure you really check out each ride vehicle carefully- make sure to look for gaps and height issues when your child is seated. If you get in the vehicle and don't feel safe, don't ride- ask the ride op to let you out. Don't let the ride op. rush you into the ride vehicle, take your time and make sure you feel comfortable. Also, be sure to ask the CM at the front entrace about the ride and safety restraints. Ask about the restrictions and ask why the restrictions are for the particular ride. Just make sure you are informed as possible before riding. As and Adult and a theme park employee, I always make sure I am 100% comfortable with the ride before getting on. If I feel unsure or see something that makes me feel unsafe, I do not ride. Most rides are perfectly safe, just make sure you take the time to check everything ok. I hope I have been helpful. If I can answer any questions, feel free to e-mail me. Have a great trip!!! - Karen