Holm Sea due to a GPS track (s.k. “track”) characterizing the lake's different basis and shoreline. The track can combine with GPS or smartphone phone used summertime to avoid because of the boat and in winter to avoid rocks or weak ice. Avoid the lines and the tour will be safer! Can also be used when fishing if you want to find again a foundation on the lake.
Holm Ziwa msingi ni GPS kufuatilia (s.k. “kufuatilia”) kwamba tabia ziwa misingi tofauti na pwani. kufuatilia inaweza kuchanganya na GPS au simu ya simu kutumika majira ya kuepuka kwa sababu ya mashua na katika majira ya baridi ili kuepuka miamba au nyembamba barafu. Epuka mistari na ziara itakuwa salama! Pia inaweza kutumika wakati uvuvi kama unataka kupata tena msingi katika ziwa.