Arena surface and lameness?

[ahlam1399]

Does anyone have any experience or views about arenas that are just silica sand with no rubber or fibre etc?We have one at our yard and it feels 'firm'. Not sure if this is the surface or that it never gets harrowed.Obviously without rubber it freezes a lot. But do you think that a firm surface is more likely to cause injuries? Or is it more to do with what is under the surface (ie foundations) and how the surface is maintained?Thanks

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