Garden centres are also allowed to offer click-and-collect services.
With the exception of some pupils returning to school in March, they are the first changes since the North of Ireland returned to full lockdown on 26 December.
However, most of the rules which have been in force have not been altered, including the stay-at-home rule.
From Thursday up to six people from two households are allowed to meet in a private garden.
The Stormont Executive advises that people should maintain social distancing during these gatherings.
If there is no alternative route, people are able to enter a garden by going through a house.
Golf clubs and other sporting activities such as tennis can resume.
But clubhouses and sport facilities must remain closed.
People can meet for exercise in groups of ten from two households.
Communities Minister Deirdre Hargey said physical activity “plays a crucial role in our physical and mental health” and that she had worked with governing bodies to ensure the safe return of sports.
Further loosening of restrictions is due on 12 April, subject to being approved by the executive after the Easter weekend.
Lockdown measures are then due to be reviewed again by ministers on April 15
Further easing of restrictions will take place from Monday, April 12.
The Stay At Home restriction will be relaxed to Stay Local.
School pupils in year eight to 11 will return to school.
All other non essential retail can operate click and collect services.
Sport training can resume but it is limited to 15 people.
Ten people from two households can meet in a private garden.
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