Longish term parking near Red Jet Southampton

Try justpark, I put in 3 days starting tomorrow near the terminal and got several hits, £15.30 the cheapest and an 8 minute walk.
 
Park in Hythe, and get the Hythe ferry to town Quay. If you buy the ticket as a through ticket at Hythe it’s cheaper than a walk up price at the red jet terminal. Plenty of free on street parking around Hythe.
 
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