Need Help With Equipment for Live Streming Beach Events

[roderpol]

Ok, it's been WEEKS of me trying to research and find a convicing solution for this, but I have found nothing clear. I would think what I need isn't so unconventional...

First of all, are there such things as wireless webcams? Why not?! A blutetooth webcam? A wi-fi webcam? A 2.4 Ghz wireless webcam? What gives?

Here is what I need to do:

I need to live stream events at different beaches. Internet access is no problem, I got that covered, here is what I can't seem to find how to do though:

I need to place 2 or 3 cameras (webcams ideally?) at different locations where the event will take place. Then I need that video to go into my laptop (not so near the cameras that I can use a cable) so that I can then live stream a video of the event while switching between the 2 or 3 cameras on LiveStream.

Why is that so hard?!

Can anyone help me with an understandable setup? Please, any suggestions will be greatly appreciated.

Limitations: I have to be able to mount and dismount the setup relatively easily.

Thanks in advance!