Childfree weekend in Manchester

[GrahamNortonsjacket]

Hi,
My friend and I are meeting in Manchester for a child free weekend and I'm looking for some good suggestions of what to do.

We are both knackered and wanting a relaxed chilled weekend with not too much drinking though there may be a few.

We are arriving Friday afternoon and leaving lunchtime Sunday with another friend joining us Saturday evening, so somewhere nice for dinner would be good.

In case it helps we are staying at the Malmaison.
So mumsnetters what should we do?!