Yes , you can go to your van to drain down . I got the below from our site .....apart from anything else I would class it as essential travel .
TAO: BH&HPA Members
Dear BH&HPA member,
Wales
The guidance for the end of Wales’s firebreak was updated over the weekend, here.
This confirms the reopening of Welsh parks to Welsh customers:
‘You are allowed to go on holiday within Wales if you live here, but not to enter Wales from elsewhere for that purpose.’
The guidance specifically addresses owners from outside Wales draining down caravans:
‘I do not live in Wales. Can I travel to Wales to secure my caravan for winter?
Under the rules in Wales, a caravan owner from elsewhere in the UK may return to collect their belongings and secure their caravan for winter. However they should agree a time and date to visit the site, whilst on site they must continue to observe the social distancing measures, and they are not permitted to stay overnight while these travel restrictions are in operation.
However, you will also need to check that what you are planning to do is allowed under the rules where you live, which the Welsh Government cannot advise you on.’
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