some spots worth checking out are 39th and spring maid pier.
39th is usually really crowded on the weekends and spring maid is slightly sketchy but worth it, as it usually has a tad bit better waves. wherever you go, share the waves and stay stoked!
you can drive up to lake arrowhead road and park somewhere past ocean annies etc. and access the dunes club swash from that direction- prolly worth it you have time on good swell, it's considered by many to be the best spot in MB and is uncrowded b/c of the access issue.