Palmerstown 08 is a checkpoint location on the River Liffey in Ireland, associated with the International Liffey Descent race course. The defining feature at this point is Palmerstown Weir, a V-shaped weir that is shot straight down the V. The key to running it successfully is getting onto the tongue of water, which is approximately three feet wide, and maintaining that line throughout the drop. The large waves at the bottom of the weir represent the most technically demanding part of the shoot. An alternative line exists on the left-hand side of the weir, roughly halfway along its length; this option is considered harder on the boat but is a viable shoot for those who prefer it.

Parking for this section is available at the Anglers Rest pub, and the river bank at the Wild Water Kayak Club provides a vantage point for viewing the weir. Palmerstown Weir is located approximately a ten-minute paddle downstream from Wren's Nest. Safety and rescue cover is available at the bottom of the weir during the Liffey Descent event. During the race, the Palmerstown section typically sees paddlers passing through between approximately 12:30 and 16:30.