Alley is a great run in its own right and a more challenging way to lead into Spyder Monkey.
Take EZ Street from Apex Ridge and as the run reaches the gully and turns, keep left and you will see the signs for Alley.
Alley is a great way to avoid the crowds on very busy days, as EZ Street can be used as an access to Sun Peaks, whilst Alley is more of a testing run.
Take care towards the bottom as, similar to Spyder Monkey, although groomed regularly, these runs can become fairly icy when there hasn't been much snow, and in early or late season.
Always take care with the merging trails to the left, as the experts on this terrain can come hurtling down without seeing you.