Exercise to support swimming

[mermaidmaria]

I swim for fitness 7 days a week and it has pretty much always been my only sport my whole life or since I was a child. I am relatively fast, but more of an endurance swimmer and always do really long swims. What type of other exercise do you do if you love swimming, but want to add perhaps something to build strength? I was thinking body pump? Pilates?

Something weight bearing that you enjoy would be good, any such thing.

I do swimming and pilates. I think swimming makes some pilates moves easier like the Cobra.

Do you add a second session in the same day or cut down on your swimming to incorporate a more varied exercise regime?