we had this and my husband put extra drainage pipes under ground which leed to main drain, alot of work but has made a difference, also he made me a raised border full length of garden for my plants, also good, we have clay so takes ages for water to drain in bad weather, but carefull planning will help

First, I'd do some diagnostics. Why is my garden wet? There are loads of possible answers, but the most common is that the soil is clay (or clay beneath) and has become compacted, thereby creating a water proof layer that water is sitting on. Digging in organic matter will break up clay and help with drainage. Another reason could be that the water table is high where you live, in which case there's nothing you can do about it.

Sometimes it's best to work with nature rather than change it - perhaps you could have a water/bog garden?

a water bog garden is nice but i wouldnt want the whole garden to be one sid , would end up croaking and hopping around lol

Lol, well at least the neighbours would be entertained San! I have a lovely vision of gunneras, candelabra primulas, astilbes surrounding calm pools with flag irises and water lillies, with raised walkways and little bridges.... always best to look for the opportunities!!??

yes that sounds very tranquile sid, when can you do mine :o)) just got gunnera, hope i can control it if it gets to much.

Lucky you - I've got one in a container, but my garden is too dry to plant it out :-(