There are many options to improve your lacrosse skills in the off-season. Wall ball is always a good idea - for during and off-season training! Search YouTube for ideas and here’s some from Ryan Powell too. 

Also here are some other ways to keep up your stick skills...

Teams/Camps:
CitySide Lax http://www.citysidelax.com/
Lacrosse Northwest www.laxnw.com
Xcelerate  www.XcelerateLacrosse.com
Oregon Lacrosse https://www.ducklacrossecamps.com
Team Oregon http://teamoregonlacrosse.com/fall-teams
Rose City Lacrosse https://rosecitylacrosse.org
Oregon Box Lacrosse https://clubs.bluesombrero.com/Default.aspx?tabid=432695