Conjunction Oddness

This sign is posted at Yaquina Head Park, at the access to one of the intertidal zones - tidal pools you can explore. I believe the sign designer (text here for those who can't read the sign) was led astray by "parallel structure". Those neat columns, with a "but don't" between the two injunctions - do this but don't do that - look neat, but read that last sentence.

Be Careful ... but don't ... ignore the sea -- it's dangerous!

It seems to me that "don't ignore the sea" isn't in contrast to "be careful" the way that "but don't pick them" is to "look at the plants" - compare, for example, "be careful but don't be afraid to get your feet wet".

I believe that "and don't" would be far better here. Otherwise, one is led to believe that turning one's back on the sea isn't part of a general "being careful" which is (especially on the Oregon coast) emphatically not so.

When You Explore the Intertidal Zone -
Look at the animals and plants and touch them gently ...	...but don't...	... pick them up, or pull or pry them off
Collect and take home driftwood ...	...but don't...	... collect or take home anything else
Watch seals and sea.s and seabirds ...	...but don't...	... get close or harass them
Be Careful ...	...but don't...	... ignore the sea -- it's dangerous!