Estan Caminando isn't the answer as because "estan" implies to be another person, but this isn't the case as it's only the man, the man isn't walking (caminando either)
He isn't shopping (comprando) and he isn't painting (pintando)
The only logical answer is he's cooking (cocinando) which is also heavily implied as him having the bowl and whisk
B.) Esta Cocinando is your answer
I would say " I'm going to the playa wanna come with me?" when they don't understand that playa means beach I just say you're loss and go.
4. Hace mucho calor el dos de agosto
5. Hace mucho frío y está despejado el diecinueve de enero.
6. Hace frío el vientinueve de febrero
8. Está nevando el vientiocho de diciembre
10. Está cálido y soleado el primero de julio.