Here are family-friendly hotel options in Melbourne grouped by the nearby kid‑friendly attractions (short notes on why each is good for families). I’ve included official/authoritative sources for distances and family amenities.

1. Melbourne CBD — great for SEA LIFE Melbourne Aquarium, Federation Square, Eureka Skydeck, National Gallery (easy walking from Flinders St / Federation Square)

• Adina Apartment Hotel Melbourne on Flinders — apartment-style rooms with full kitchens, laundry and an indoor heated pool (good if you want to self-cater or need space). (adinahotels.com)
• Novotel Melbourne (On Collins / Melbourne Central options) — branded family rooms, kids‑stay/free breakfast policies and dedicated family amenities; very central for trams, laneways and attractions. (novotel.accor.com)
• SEA LIFE Melbourne Aquarium location (corner of Flinders & King St) — a 5‑minute walk from Flinders St station / easy to reach from CBD hotels. (support.melbourneaquarium.com.au)

2. Southbank / Crown — good if you want to be riverside, near Crown Entertainment Complex, Eureka Tower and walkable to SEA LIFE

• Crown Promenade / Crown Towers (Southbank) — family packages, interconnecting/large suites and indoor pools; very close to the riverfront and Crown complex. (crownmelbourne.com.au)
• Pan Pacific (South Wharf) — has a dedicated Family Queen room and is close to Docklands / South Wharf family attractions (Melbourne Star, ArtVo, and short tram ride to SEA LIFE). (panpacific.com)

3. St Kilda / Albert Park — ideal for Luna Park, St Kilda Beach, playgrounds and a relaxed seaside vibe

• Saint Kilda Beach Hotel (formerly Rydges St Kilda) — right near the beach and within easy walking distance of Luna Park; hotel advertises family-friendly amenities. (saintkildabeachhotel.com.au)
• Pullman Melbourne Albert Park / Mercure Melbourne Albert Park — larger rooms and family room options; a short drive/tram to the St Kilda foreshore and Luna Park. (all.accor.com