Just been reading it, we are still in 3
Government website says should not
Travelling to a Tier 4 area from a Tier 1, 2 or 3 area
You should not travel into a Tier 4 area from another part of the UK, other than for reasons such as:
travel to work where you cannot work from home
travel to education and for caring responsibilities
to visit (including staying overnight with) those in your support bubble – or your childcare bubble for childcare
to attend hospital, GP and other medical appointments or visits where you have had an accident or are concerned about your health
to provide emergency assistance, and to avoid injury or illness, or to escape a risk of harm (such as domestic abuse)
Just re planning tomorrow’s ride
If you are in Tier 4
outdoor recreation or exercise. This should be done locally wherever possible, but you can travel a short distance within your Tier 4 area to do so if necessary (for example, to access an open space)