Our ship is there for one long day, and we're wondering about the possibility of doing both of these recommended activities in one day?

Also, am I right in thinking it better to explore the glacier later in the day after the fog dissipates?

Hi, Didn't say when you're going, but we're going in Aug. and I've booked the glacier helicopter tour and orca tour in Juneau, both booked through Capt. Larry's, who I've read great reviews on several chat sites. They arranged both and assured me we'd be well within the time frames for our ships port time.