2 listings
There are 2 budget activities & tours in Noosa on thegood.guide. These include Aqua Park Coolum, Little Cove beach. All listings are editorially reviewed with real Google reviews and opening hours.

A floating inflatable obstacle course on the Sunshine Coast that's harder than it looks and cheaper than you'd expect. Timed sessions at $30 per person, deep water, plenty of life guards, and shaded BBQ spots for whoever's watching from shore.
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Fifteen minutes along the Noosa boardwalk from Main Beach, Little Cove rewards the walk with calm, clear water and softer sand than Tea Tree Beach. Small, occasionally windy, and unpatrolled. The trade-off for skipping the crowds is a bit of legwork.
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