Summer Birthday Party ideas for 1 year old . ItÃ¢ s time to celebrate the most awaited 1st birthday party of your baby. Its summer time also when all the kids are always waiting for some fun to happen. For 1 Year Old Girl Party Ideas Please note: You are currently browsing img butterfly garden birthday party ideas photo 1 of 23 that is 900x601px in size. This image is listed in 1st birthday garden party decoration category. For 1 Year Old Girl Party Ideas, 900x601 in 92.78 KB.