Ferndown is conveniently located for travel by car and has good links from the West on the A35 and A31 roads. It is also close to the M27 & M3 motorways which makes driving from London only a 2 hour trip.
Trains do connect all over the country to Bournemouth, however a short bus ride is then required to Ferndown.
There are lots of accommodation options in the Ferndown, Bournemouth area and https://www.airbnb.co.uk/ is one of the best sources to find your ideal stay.
http://www.thebridgehousehotel.co.uk
https://www.premierinn.com/gb/en/hotels/england/dorset/bournemouth/bournemouthferndown.html
Parking in Ferndown is limited, however the best all day parking is at Pennys Lodge Car Park.