For future reference, if you could send all the relevant code in this post in text format using three back ticks (`) (to the right of the number one on most keyboards) it would make it easier for people to help you.
#need help w/ fishing system
pastel edge
As for implementing the feature you want, given that the 'splash' object is a basepart or model, adding a click detector to 'splash' will likely be the easiest way to get what you want.
https://create.roblox.com/docs/reference/engine/classes/ClickDetector#summary
