There’s usually cameras in hotel hallways, stairwells, exterior areas. What I find odd is no reports yet, of her being picked up on camera near the pool. From the aerial view it looks like she had to pass the pool to gain access to the lake. I doubt it was Ambien. I think it was maybe a glass of wine at dinner combined with jet lag, insomnia, time change, a full moon.... the perfect storm. Go out by the water and breathe in some fresh air, look at the stars, lose your balance, stumble while lookin up.....