Six feet under.

Perform "swordless link", go to Lake Hylia and get on Epona.While on Epona,get as close as possible to the 'warp' going to Zora's Domain.Equip the iron boots and use the ocarina or deku nut to dismount Epona.Very slowly go to the 'warp' and press "A" and immediately take off the iron boots.Then switch between the boots to get underneath the ice.