Wanted: Private Charter for 2-4 on June 20

I'm looking for a private charter for 2 people in St. Thomas on June 20. I'll be on a cruise and in port from 8am-6pm. Would love to find a nice, large boat (food and drink) with an experienced captain with a lot of local knowledge. Right now, it's just me and my girlfriend. We may be open to splitting expenses with another couple if it worked out. Please let me know if you or someone you know could handle this charter. Thanks in advance.