From $35
Sail to North America's only living coral reef
Top-of-the-line snorkel gear
$49-$51
Sail to Liberty Island with stunning Manhattan views
Ferry tickets to Liberty and Ellis Island
Cruise through Biscayne Bay with expert narration
90-minute bilingual sightseeing tour
$47-$48
Cruise around Alcatraz Island
"Straight to the gate" access
From $44
Cruise the mighty Mississippi River
2-hour riverboat cruise
$54-$60
Cycle uphill to City Hall district
Bike bag
$44-$67
Admire the Empire State Building at night
2-Hour Night Tour by open-top double-decker bus
$38-$39
Cruise along San Francisco's waterfront
One-hour cruise
$89-$99
Explore towering redwoods at Muir Woods
Round-trip transport from San Francisco
