Okay girls, I have doen the research. Here it is. I went back to Trip Advisor and found the name of the company that runs all of the water sports for the Riu Ocho Rios. It is Scuba Caribe. Here is their website
Cape Verde, Dominican Republic, Jamaica and Mexico diving with Scubacaribe
Below is a price list of activities. I think the glass bottom boat ride would be awesome to do as a group. It's an hour long and it's $20.00 per adult $15.00 per child but I bet you a group rate could be negotiated. Or you could ask a bout a catmaran ride but without the Dunn's River Falls or snorkeling.
Go to the website and fill out a contact form for Riu Ocho Rios for more info.
Scubacaribe - Riu Ocho Rios
US$
Snorkel Equipment (deposit US$25.00)
FREE
Dunn's River Sail Catamaran Cruise (3 1/2 hours)
59.00
Dunn's River Sail Catamaran Cruise (3 1/2 hours) child
49.00
Scubacaribe Snorkel (1 hour)
15.00
ScubaCaribe Snorkel (1 hour) 4-12
10.00
Sunset Evening Cruise(Sail Catamaran)
59.00
Sunset Evening Cruise(Sail Catamaran) child
49.00
Windsurf Lesson
25.00
Sailing Lessons
25.00
1-pax Parasailing(8-10 mins)
50.00
Tandem Parasailing (for 2 pax)(8-10mins)
90.00
Glass Bottom Boat (1 hour)
20.00
Glass Bottom Boat - Child (4-12)
15.00
Glass Bottom & Snorkeling Combo 1 /45 mins
30.00
Deep Sea Fishing (28 feet)
495.00
Big Fishing Boat ( 40 - 45 feet)
700.00
Single person fishing ( part of a group)
130.00