Where are the spark plugs located in a Toyota Estima 1995?

spark plugs are under drivers seat , what a pain but easy . four 15mm bolts on seat 2 on handbrake then lift carpet the rest are 13mm bolts about 10 of them , then remove cover , under that there is three 10mm bolts which holds a plastic cover on which hides the plugs , u will need a 16mm spark plug spanner :O)