So, it turned out that the stream was a little shallower than we had anticipated ;-) we couldn't really attempt to get the images we had planned but I am actually quite pleased with shots we got in the end anyway.
The shoot came to quite a sudden end as a police man rode past on his motorbike. At this moment, Genna's head was submerged in water and she stood beneath the running water with her eyes closed, blissfully unaware that the police man was even there. Luckily, he was a lovely man and I managed to convince him that for the sake of art I needed to take a couple more shots. He was actually more worried that some bad men could get the wrong idea at this time of night and told us we could be here just not so naked.
Anyway, these images aren't exactly what we were going for but it only gives us room for improvement! Next time we will check the water is deeper than an inch and that nice policemen on motorbikes won't be interrupting us.