Hi, we used the yacht Wild card jack, he has a face book page, great crossing and captain John knows what he,s doing.
As far as safety goes Columbia is as safe as anywhere in South america, we travelled all over for 4 months and never felt threatened, nice people, great country.
Usual rules apply,don,t do anything you wouldn,t do at home hehehe.
I put wild card details on biker friendly here on horizons
Enjoy your travels