Mull - Information please

[Kevin]

Hello. Im trying to organise a Dive trip for my club to Mull at the end of May and Im looking for any information on preferred dive sites and if possible either GPS or transit markings.
If you can provide any assistance then please E-Mail me on

<a href="mailto:Budders01@Hotmail.com">Budders01@Hotmail.com</a>

Thanks in advance

Kevin