was wondering if you've heard anything about the viking splash tour in dublin. is it a good overview of things? would it just be better to forget that and just walk and do the hop on hop off bus (when necessary)?
been on the boston duck tours (same thing here), it was very good. not sure if it's a waste of time for 2 hrs. in dublin or if it would help......
The Viking Splash Tours have won awards and seem like a fun tour. However, you cannot get on and off at various locations like you can with the hopper. If you have limited time you might want to do the hopper first and see if any time is left over for the Viking.