Hey /trv/

I want to go on a holiday to Nigeria for some hawt safari action. Thing is, I really am sick of getting on fucking cramped planes, and I'd love to take a ferry this time.

Now, what I want to know is:
1. Is this possible? I live in London, England (not far from Dover)
2. If it is possible, will that cost extra?

I know I should just speak to a travel agent, and I will, but I figured I'd see what you guys have to say first.