If a site is open, but the on site toilet and shower facilities including those for disabled campers are closed due to Coronavirus and the toilet and shower in your caravan are not suitable for your needs, there's not much point in visiting that site until it's fully open with no restrictions.
As long as the site have informed those booking a visit that the amenities are not fully open before they book their obligations are fulfilled.
We have one break booked before Coronavirus restrictions are fully lifted.
On the online booking form we have to agree to use our onboard facilities as a condition of making the booking.
If your caravan toilet and shower facilities are unsuitable there are
raised toilet seats and shower stools available online.