Where does the tether strap attach to?

Hi Felicity, Thank you for your enquiry. The Diono Olympia tether strap should be attached to the floor (using the extra tether connector strap aswell) when the seat is rear facing or to the anchor point in the boot when the seat is forward facing. Installation for this seat can be using the LATCH or seat belt and it is highly recommended to use the tether strap. If you follow the link https://www.babyonthemove.co.nz/store-locations/ this will take you to our online store finder where you can find contact details for your nearest Baby On The Move Store. Here, one of our expert Car Restraint Technicians can assist in helping you to find the right car seat for you and your child. We hope this has helped with your query.