Eagle beach will not be crowded in october.
There was a bike(cycle) ralley the last weekend we were there last october. That was around the 15th. The only time we saw them was on the main road in front of kong hing. I dont know how many there were but they were coming towards us and they were 2 or 3 across and it took 2 or 3 minutes for them all to pass us. Lots of stragglers after that. Looked like each club had their own colors too.