There are many ways they can improve safety measures without it being overly intrusive for the 'normal' guests. The proximity alarms are one option. Having satellite security stations is another thing they should consider, instead of having a central office with officers just doing rounds which seems to be the norm. I would have a security station on or within seconds of the pool deck for example, with their own video displays for cameras in their zone. It could be completely hidden and therefore not be a damper on guest activities, but still the officers could be on the scene of a jumper in seconds instead of a minute or two, and that makes a huge difference.