Start of offseason program: April 21
OTA (organized team activity) workouts: May 28-30, June 2-3, June 5, June 9-10, June 12-13
Mandatory minicamp: June 17-19
The Giants will not hold a traditional rookie minicamp as they have in years past, mainly because the draft is three weeks later than usual this year.
Because they are playing in the Hall of Fame game to start the preseason, the Giants (and the Bills, their opponent in that game) are eligible to open training camp earlier than other teams. The earliest they can open training camp is July 19. They have not yet announced when they will.
Offseason workouts are not open to the public.