NCS and being terrified of heights

So, I'm doing NCS in the summer and I'm terrified of heights and I can't swim... Will this be a problem? And if so, any tips?

Learn to swim, it might be handy one say.

Hi,

I done NCS during summer of 2015, and then volunteered as a mentor the following summer of 2016. Your fear of heights and inability to swim shouldn't really be much of an issue.

The activities completed during week 1 vary from: Rock climbing, gorge walking, canoeing, surfing, camping; hiking etc. If you feel like you would not be able to complete an activity, you could choose to opt out. However, you most likely wouldn't. This is because these activities are completed as a group, and your whole group will be supporting you.

Your fear of heights would only really affect you during rock climbing, and even then it's not that bad. The wall/boulders climbed are not that high off of the ground, and you are supported with a rope. Your inability to swim shouldn't matter as you don't really swim during ncs.