If you are living in New Zealand and want to find some new hot spots for your next fishing trip, then you can check out the LINZ - Land Information New Zealand Website. They provide free downloadable Marine Charts for many areas in NZ.
A pretty cool website for viewing the above NZ Marine charts is wetmaps
I use this site quite a lot for exploring new fishing areas and the developer has done a great job with this site.
This is a great tool for boaties as well as shore based anglers.
Use it to find deep holes, drop offs, channels and reefs for potential fishing spots.
Do you know any websites that provide free marine charts for other countries? Send me the link and I will add it to this page.