tracking 20 boats

Dear all, this is my first post and it’s my first project involving GPS.

I want to track in real time the movement of 20 boats in a small lake (15.000 square meters).

As I have read in this forum, I can connect a GPS direct to an Xbee pro 2.4.

So I’m planning to build 20 devices like that and install one in each boat.

In the other side, on the ground, a Xbee pro in an Arduino Mega connected to my computer.

My questions:

  1. Will it work?

  2. Can I identify and tracking in my computer the 20 boats simultaneously.

Thank you very much in advance.

Rudni