Canadian recreational marijuana laws???

Please help if you’re Canadian or know the answer to my questions! So I am American and for my 20th birthday I wanted to go to Canada and blaze up right. I’m just wondering if I go up there can I buy it. I know I’d have to smoke it all before I come back to America or very securely bring it with me lol. How much is an eighth up there? I think I’d be going to Saskatchewan. Please help!