Because electronic charting is now available from a number of sources, this is not an easy question to answer. However, I am sure Renee will be happy to hear your opinions.

We are casual, back-yard (usually within 50 miles of home) boaters who know our area waters relatively well.
Just because I really enjoy ‘charts / maps / navigating’ — most of the time I have my iPad or mobile GPS device open, following along, etc.
Today, traveling from Madeira Beach and across Boca Ciega Bay into Maximo’s (didn’t know the seafood shack had recently closed — thought it was gonna be in the summer – we came across some green / red markers coming straight out of Maximo’s and leading to the cutline across the bay.
I have numerous charts and none reflect the markers.
I updated my NOAA charts and none of them reflect it either.
What charts do you / your group feel are the Most Accurate Charts for this Tampa Bay / Boca Ciega / Clearwater / Tarpon area????
Any help would be much appreciated.
Thank you.
Renee Krupp

Renee will be interested in these comments and advice by SSECN regular contributor, David Burnham: (/5393)

April 22, 2014,
The Maximo Marina on the east end of Boca Ciega Bay at Gulfport, Florida is accessed by a long channel that has just recently been remarked by new unlit daymark pilings which prevents deep draft boats from running aground as they enter Boca Ciega Bay when leaving Maximo Marina and turn north to go to the Gulfport City Marina. These unlit daymarks are not on any charts or chart plotters and the western most pair of the 3 sets of unlit daymarkers, green#7 and red #8, extend into Boca Ciega Bay as far as the pair of markers, #14 and #15, just to the south or them that mark another channel coming from Tampa Bay. Green #15 is a lighted marker, red #14 is unlit.
The real confusion comes from the fact that the daymarks on the channel to the Maximo Marina, the northern channel, have the even numbered red daymarks on the right (as they should), and the southern channel coming from Tampa Bay, has the red marked pilings on the left as you approach the southerly channel from the west. The two unlit red daymarks that mark the two channels are less than two tenths of a nautical mile apart and look identical from a distance.
Until chart plotters are updated, cruise carefully after dark on the west end of Boca Ciega Bay.
David Burnham