#2, the issue with one is that it works well if no one cares for the past (like a blog) or it is real small (two things like your example), but if there are many it can easily get tedious


two other options could be
a) changing lists that open/close
Home
GUI buttons
-- transport
-- water
GUI templates

easy to navigate

b) like #6 but with an index list at the top (i.e. the gui button page will have)

GUI buttons
----------------
transport - water - ....
----------------
transport