Meet the site
Mackerel Bay is one of the Hook Island bays that come into their own when the usual south-easterly pattern breaks down and northerlies blow, typically in the warmer months. 100 Magic Miles lists it with depths of 2–12 m and visibility of 2–10 m, describing good coral cover in shallow water that drops off to scattered bommies forming canyons. Fish are medium-sized and present in quite good numbers. The layout gives a straightforward dive: a shallow coral terrace for snorkellers, then a drop to bommies and the canyons between them, where fish shelter and divers can weave between coral heads. Expect coral trout, sweetlips, parrotfish, fusiliers, damsels and wrasse, with turtles and the occasional reef shark. The canyons add enough structure to keep a dive interesting despite the modest depth. Conditions are the key. The bay is exposed to southerly winds and is therefore used mainly in northerlies, and visibility depends heavily on the tide; the guide recommends neap tides for the best snorkelling. Tidal flow around Hook Island is significant on spring tides. Mackerel Bay sees fewer day boats than the northern Hook sites because it is used only in certain wind conditions, so it tends to be dived by bareboats, overnight sailing trips and dive boats looking for a sheltered option on a northerly day. Like other Hook Island fringing reefs, it may have been affected by Cyclone Debbie in 2017, and coral condition should be checked. It is a pleasant, easy dive for Open Water divers and a good snorkel on the right day.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
Mackerel Bay (Hook Island) is recorded as Reef in Whitsundays & Bowen. The listed access is boat (day trip). Confirm the actual meeting point, route and permission to visit; a map pin does not establish any of these.
Topics flagged by the stored research
These are questions prompted by the existing notes, not a verified or complete hazard assessment.
- Current and timing
- Ask how the operator assesses the current window for the actual route. Historical tide notes are not a departure instruction.
- Other water users
- Ask about vessel activity, exclusion areas and the agreed surface arrangements.
Historical access notes exist for this record, but have not been independently verified for current use. Request current directions from the operator or site manager rather than following an old entry description.
Questions, answered
Is Mackerel Bay (Hook Island) suitable for my certification?
The record lists Open Water. That does not establish suitability for every route or day. Share your training, recent experience and equipment needs with the operator and ask about the specific proposed dive.
Can I book Mackerel Bay (Hook Island) through YouDive?
YouDive is an independent research directory. Contact an operator directly to confirm whether it currently runs the trip, the inclusions and the booking terms.
What you might see
Coral trout, sweetlips, parrotfish, fusiliers, damselfish, wrasse, turtles, reef sharks, hard corals
Location
Bay on Hook Island used as a northerly-weather anchorage, with shallow coral dropping to scattered bommies and canyons.
Facilities nearby
Departures from Coral Sea Marina and Port of Airlie (Airlie Beach) and Hamilton Island marina; air fills, hire and courses at Airlie Beach dive centres. No facilities at the bays.
Before you make plans
Conditions, access and operator schedules can change. This is a location guide, not a dive plan. Ask a local operator about current conditions and suitability for your training and experience.
Sources & further reading
100magicmiles.comRecord updated 26 Sept 2026. Source claims are being reviewed.