Hi TravelGip, welcome to Cruise-Chat. Every ship I've been on has had caviar available for purchase. I've not cruised on the Explorer, but cannot imagine they wouldn't have it. I'm sure SonnyV knows. Did want to welcome you aboard. Best wishes and have a fantastic cruise!
I was on the Enchantment about 4 years ago and they had it, but then heard they discontinued it.
Well now, I hadn't heard that but to be honest I haven't looked for caviar on our last couple of RCI cruises. You may want to wait and see what Sonny or one of the others who have cruised RCI recently have to say.
Also - you need to use BB code for the ticker. You are using HTML code and that won't work. BB code is one of the three choices you have at the ticker sites.