Sharing Internet wifi connection

[spanners70]

I spend a lot of time in a hotel with work which has wifi only Internet connection, 1 gadget only and if you log off my mac it won't let me use it on the iPad etc so I have to pick one gadget and I'm stuck with that only for the week.
I have 2013 macair, iPad and iPhone. Is there anyway to log in off one of these but then share the connection with the others? Ie connect on my mac direct to Internet but then connect iPad or iPhone to the macair to the Internet?
Thanks complete novice so simple explained answers appreciated!!

 

[Redbull916]

bump

 

[Bruno09]

If your Mac is connected via wifi, you can share the connexion via Bluetooth.

Go to System Preferences / Sharing.

On the right side of the window, check the tick boxes :
"share your connexion" from : Wifi
Via : PAN Bluetooth

On the left side of the window, check "Internet sharing"
"Start" the sharing when prompted.

Now go to System Preferences / Bluetooth, activate the Bluetooth, and pair the devices (Mac - iPad or Mac - iPhone).

This *may* work, however some public networks do not allow this, so... you will see.