we opted for a tour as it is troublesome to make our own way to konigsee lake (it would take arnd 3hrs with 3 train + bus transfers). view was great but do note that u may not have much time at the lake with this tour - we only had 1 hr, which is understandable given the long drive from Munich city. if u wish to spend more time at the lake, then u need to go yourself. the tour of the salt mine was unexpectedly interesting 👍🏻