Ontario Provincial Police are hitting the roads for the long weekend.
Superior East OPP Detective Constable Trevor Tremblay says one focus will be impaired driving.
Officers will also be watching for the other "Big Four" - aggressive or distracted driving and lack of seatbelts - as the OPP reports 176 people have died in 166 fatal collisions on OPP-patrolled roads as of the end of August, with 47 involving excessive speed, 33 an inattentive driver, and 22 alcohol or drugs - a lack of seatbelt use also contributed to 29 deaths.
Constable Tremblay also notes penalties for "stunt driving" are getting tougher.
Tremblay reminds "stunt driving" is now 40 kilometres an hour over the limit on any roads with a limit of 70 or lower.
OPP will also be watching trails and lakes and rivers, as well.