Hi all, thanks again for all recomendations! What I ended up doing was booking a combined stay and dive package through Prodivemex at Grand Occidental for 8 days. Then going to Club Med closer to Cancun for 6 days and some whaleshark watching. To get the 14 year old litle lady supportive of 6 days of diving I will have to endure 2 days of power shopping in New York... Add some decent weather and good visibility and hopefully we wil be in diving heaven in Cozumel.