Unknown (large) caterpillar spotted in NE Notts

Unknown (large) caterpillar spotted in NE Notts

Observation - Unknown (large) caterpillar spotted in NE Notts - UK and Ireland. Description: I saw this large caterpillar on a cycleway on North Esst Nottinghamshire. Can anyone tell me what it is? I wondered if it is some kind of moth caterpillar?

I saw this large caterpillar on a cycleway on North Esst Nottinghamshire. Can anyone tell me what it is? I wondered if it is some kind of moth caterpillar?