When I had one my son suggested I make a Roman drain.
(What the Romans had got to do with it I never quite knew.)
This was to dig a trench, tie some twiggy material together and place in the bottom, replace the soil on top.
Which was successful.

I felt very chuffed at achieving this link with history.

Two years later I forgot it was there, the twigs had rotted,
and I fell into it, feeling the biggest fool in creation.
It was a good laugh anyway.

Think its a good idea, using a bigger bundle of twigs,
tied very firmly, marking the place where it is.

I think that this was one of the earliest forms of a soak-away. They are still used, albeit using more modern materials to take water away from buildings.

You could use a lot of smallish stones instead of twigs, they would last longer! But why not have a bog garden? You could grow some lovely primulas and other stuff that doesn't like drier ground. If you scroll down to the bottom of this page you'll see an alphabet - click on B and look under bog gardens for lots of ideas. Might be better to go with the flow than fight it!