a base plate compass, containing a magnifying glass, ruler and scales for 1:25000 and 1 mile to 1 inch. i know how you feel about swimming although i have no idea of your weight. use of the e-brake with a fairly hard turn will result in drifting and slow you down. it took then 2+ hours to sort out what they were going to do. not with this plush camping gear. it seems that giving up only works if there has been some degree of struggle before. 