Any open water, pools, bucket, puddles etc
Lock cupboards and drawers
Detergents and cleansing products
The bathroom cupboards
The list could be endless just watch what he’s getting into a the most and go from there

I would always make sure children can’t reach up and pull something down on top of them.

Swimming pool (if you have one); cleaning chemicals; the kitchen in general; power points; blind cords.

1 Power points. That is the first dangerous thing they decide to explore which they start moving around. You can buy a packet of plastic “plugs” to put in them to stop them putting anything in the power point at all. You simply pull them out when you use the power point and put it back in afterwards. They are available at Target and KMart in the baby section. I think they would be available at all baby supply shops.
2. Drawers. They will get low drawers open before they will get cupboard doors open. Not just in the kitchen but in bedrooms – drawers in dressers, dressing tables etc. One little one I know tried to climb into a bottom drawer and pulled the dresser down on top of herself and was rushed to hospital with suspected concussion as she knocked herself unconcsious but was given the OK…… 3. Cupboard Doors. There are plenty of dangerous items in many cupboards ranging from chemicals, sharp objects, heavy ones….and don’t forget they may eventually in 3 or 4 years manage to climb up to the medicine cupboard too. I know a 3.5 year old girl who lived on a country property serviced by RFDS who pushed a table and chair over to a high cupboard, managed to put the chair on the table and reached the medicine cupboard above the fridge and got the orange flavoured baby medicine. This was just before childproof lids became compulsory on medicine bottles. Her Mum radioed RFDS and got instructions for treatment which was successful. The mum had been busy attending to a young baby and hadn’t realised immediately that she was no longer near her. She also had the washing machine on. she she didn’t hear her move the table.
4. Make sure they can’t unlock any house doors. A lot have latches on them. By the age of 3 y.o. a lot of children can reach and turn the inside latches, reach the door handles and take themselves outside. It might take them a little longer if they aren’t very tall.
5. Make sure they can’t get out in the front yard / footpath / street. Once they can get the front door open you need another safeguard – either something extra on your front door or your front fenced and gated. Bear in mind that emergency services need to be able to access your front door in an emergency. Electric gates will fail if the electricity goes off at all, so you wouldn’t be able to escape either. If you add something to the front door it needs to be easy to access in an emergency……………You wouldn’t want to let your child have solo access to the back yard at too young an age either.

Chemicals
Toilets
Swimming pool area
Balcony area if you live in apartment
Sharp items i.e.: knives, scissors etc

Ive learnt from my kids – that it depends on your child. The big obvious ones – Kitchen drawers & cupboards, stove, covering edges of tables or furniture that are pointy, anywhere you keep cleaning products, medicines etc and secure chests of drawers and TV’s. Anything they could tip onto themselves. 2 of mine were climbers and jumpers and covering the edges of tables and furniture was a huge help as at their worst they were head height with the corner. My other didnt climb but loved to pull whatever he could grab. Best idea is to watch your child and what they’re interested in & act from there!

i could list much more than 5 lol.
power points,
chemicals,
toilet,
bathroom,
stove,
doors
stairs
furniture with sharp edges
preventing access to the road

power points, cleaning product cupboards, cords and electrical equipment.

I always had a gate at the kitchen door so we had no accidents in the kitchen,& also at the bottom of the stairs.

Glass ware, ornaments, lowline TV’s, ovens, stairs, chemicals, cupboards & drawers.
Be careful if you have a lowline TV cabinet, very easy to climb up on to!
All glass ware & ornaments, anything breakable should be high up out of reach of little fingers. Powerpoints, get the child proof clip ins. You can also purchase clips for toilets, cupboard doors & drawers. Kids move so quickly you just can not be to careful!

Obviosly do all the safety stuff, like ovens and stairs, then wait and see what your little one likes to “explore” the most and deal with it as it comes. Mine loved to climb so we needed to secure shelves and cabinets to the wall. Also going through cupboards and drawers was a favourite, so we got baby latches.

I think kitchen stove, oven, stairs, detergent shelves and swimming pool.