The main event at the 2017 Bluenose Marathon in Downtown Halifax is now underway. The Full Marathon got underway at 8am, with slower runners given a 7am start time. The 10k race is also taking place this morning. The weekend event attracted more than 10-thousand participants this year. More than 3-thousand of those took part in yesterday’s 2k and 4k youth runs – the largest kids running event in Canada.