The platform where the bridge is has an opening that is quite large.  For smaller bodies - one and two year olds - they can easily slip out and fall if they are not supervised properly. This would be our only concern with the design (albeit it's designed for 2-6 year olds I believe). For older children it's a fun exit and entrance to the bridge, as long as there is not another child going in/out of the tunnel underneath.  We considered flipping the wall on the bridge to lessen the gap but there is a middle bolt that won't align properly unless you skip out on the middle bolt.  Also taller kids may fall over making it a higher drop if they do so we opted to leave it the way it is and rely on greater supervision. 

I contacted STEP2 if they sold a part that we can add on but they do not.

Otherwise the children and teachers love this climber.