U of M extension launches summer camps, classes The 4-H learning series starts June 8, 2021, with a class on campfires. In-person day camps start June 16. 2:51 pm, Jun. 3, 2021 × Aedea Winter, 12, harvests kale in her family's garden Aug. 1, 2020. Attending 4-H Healthy Sprouts, a virtual gardening class through the University of Minnesota extension office, has helped Aedea stay engaged, she said. (2020 file / Tyler Schank / News Tribune) Kiddos across northeast Minnesota and beyond can get their summer fun online and in-person this summer. The University of Minnesota Extension kicks off its summer catalog on Tuesday, June 8, with a variety of courses and camps — and there’s something for stargazers, globetrotters, crafters and more.