Cats and Guinea Pigs

we recently got two kittens who are working out just fine. we also
put lids on the piggie cages so they cannot get in. both kittens sit
for hours around the pig cage, I think just trying to figure out just
what they are and how to get in the cage. the pigs seem to not care
very much about being watched. one even climbed up and sniffed the
cats nose. no sign of any kind of stress that I have noticed.

I know that someday a cat is going to try and get her arm in as far as
it can go to swipe at a pig, but other than that I don't see how they
could cause any injury. the piggies don't seem bothered at all by
their visitors.

the kittens only have access to the cages when everyone is home so
that should not be a problem.

anyone found a way to get the cats to give it up and forget about
them, or are they going to be a 5 year or so challenge for them?

Craig